Complementary angles 57 degrees and 33 degrees

Complementary Angles 57-33

Complementary angles 57 degrees and 33 degrees

Complementary angles 58 degrees and 32 degrees

Complementary Angles 58-32

Complementary angles 58 degrees and 32 degrees

Complementary angles 59 degrees and 31 degrees

Complementary Angles 59-31

Complementary angles 59 degrees and 31 degrees

Complementary angles 6 degrees and 84 degrees

Complementary Angles 6-84

Complementary angles 6 degrees and 84 degrees

Complementary angles 60 degrees and 30 degrees

Complementary Angles 60-30

Complementary angles 60 degrees and 30 degrees

Complementary angles 61 degrees and 29 degrees

Complementary Angles 61-29

Complementary angles 61 degrees and 29 degrees

Complementary angles 62 degrees and 28 degrees

Complementary Angles 62-28

Complementary angles 62 degrees and 28 degrees

Complementary angles 63 degrees and 27 degrees

Complementary Angles 63-27

Complementary angles 63 degrees and 27 degrees

Complementary angles 64 degrees and 26 degrees

Complementary Angles 64-26

Complementary angles 64 degrees and 26 degrees

Complementary angles 65 degrees and 25 degrees

Complementary Angles 65-25

Complementary angles 65 degrees and 25 degrees

Complementary angles 66 degrees and 24 degrees

Complementary Angles 66-24

Complementary angles 66 degrees and 24 degrees

Complementary angles 67 degrees and 23 degrees

Complementary Angles 67-23

Complementary angles 67 degrees and 23 degrees

Complementary angles 68 degrees and 22 degrees

Complementary Angles 68-22

Complementary angles 68 degrees and 22 degrees

Complementary angles 69 degrees and 21 degrees

Complementary Angles 69-21

Complementary angles 69 degrees and 21 degrees

Complementary angles 7 degrees and 83 degrees

Complementary Angles 7-83

Complementary angles 7 degrees and 83 degrees

Complementary angles 70 degrees and 20 degrees

Complementary Angles 70-20

Complementary angles 70 degrees and 20 degrees

Complementary angles 71 degrees and 19 degrees

Complementary Angles 71-19

Complementary angles 71 degrees and 19 degrees

Complementary angles 72 degrees and 18 degrees

Complementary Angles 72-18

Complementary angles 72 degrees and 18 degrees

Complementary angles 73 degrees and 17 degrees

Complementary Angles 73-17

Complementary angles 73 degrees and 17 degrees

Complementary angles 74 degrees and 16 degrees

Complementary Angles 74-16

Complementary angles 74 degrees and 16 degrees

Complementary angles 75 degrees and 15 degrees

Complementary Angles 75-15

Complementary angles 75 degrees and 15 degrees

Complementary angles 76 degrees and 14 degrees

Complementary Angles 76-14

Complementary angles 76 degrees and 14 degrees

Complementary angles 77 degrees and 13 degrees

Complementary Angles 77-13

Complementary angles 77 degrees and 13 degrees

Complementary angles 78 degrees and 12 degrees

Complementary Angles 78-12

Complementary angles 78 degrees and 12 degrees

Complementary angles 79 degrees and 11 degrees

Complementary Angles 79-11

Complementary angles 79 degrees and 11 degrees

Complementary angles 8 degrees and 82 degrees

Complementary Angles 8-82

Complementary angles 8 degrees and 82 degrees

Complementary angles 80 degrees and 10 degrees

Complementary Angles 80-10

Complementary angles 80 degrees and 10 degrees

Complementary angles 81 degrees and 9 degrees

Complementary Angles 81-9

Complementary angles 81 degrees and 9 degrees

Complementary angles 82 degrees and 8 degrees

Complementary Angles 82-8

Complementary angles 82 degrees and 8 degrees

Complementary angles 83 degrees and 7 degrees

Complementary Angles 83-7

Complementary angles 83 degrees and 7 degrees

Complementary angles 84 degrees and 6 degrees

Complementary Angles 84-6

Complementary angles 84 degrees and 6 degrees

Complementary angles 85 degrees and 5 degrees

Complementary Angles 85-5

Complementary angles 85 degrees and 5 degrees

Complementary angles 86 degrees and 4 degrees

Complementary Angles 86-4

Complementary angles 86 degrees and 4 degrees

Complementary angles 87 degrees and 3 degrees

Complementary Angles 87-3

Complementary angles 87 degrees and 3 degrees

Complementary angles 88 degrees and 2 degrees

Complementary Angles 88-2

Complementary angles 88 degrees and 2 degrees

Complementary angles 89 degrees and 1 degree

Complementary Angles 89-1

Complementary angles 89 degrees and 1 degree

Complementary angles 9 degrees and 81 degrees

Complementary Angles 9-81

Complementary angles 9 degrees and 81 degrees

Illustration of the projection of a cone that is rightly inclined.

Projection Of Cone

Illustration of the projection of a cone that is rightly inclined.

Illustration of the projection of a cylinder that is rightly inclined.

Projection Of Cylinder

Illustration of the projection of a cylinder that is rightly inclined.

A, B, and C show three types of triangular prisms: right, isosceles, and equilateral. When put together with rectangular prisms, they create the three basic house forms. D is a shed roof and E and F are gable roofs.

Drawing House Forms

A, B, and C show three types of triangular prisms: right, isosceles, and equilateral. When put together…

At the command right, turn the head to the right oblique, eyes fixed on the line of eyes of the men in, or supposed to be in, the same rank." — Moss, 1914

Eyes right

At the command right, turn the head to the right oblique, eyes fixed on the line of eyes of the men…

"If the conducting wire is bent into the form shown, the lines of force will pas around the wire from one face of the loop to the other, and in the direction indicated by the 'rule of thumb' just given." -Avery 1895

Magnetic Field Around a Current Carrying Wire

"If the conducting wire is bent into the form shown, the lines of force will pas around the wire from…

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which belongs a number of forms having some property in common. In order to classify these different crystals, the existence of certain lines within the crystal, called axes, is assumed, around which the form can be symmetrically build up. These axes are assumed to intersect in the center of the crystal, and to pass through from one side to the other." — Hallock, 1905

First Right Square Octahedron

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which belongs a number of forms having some property in common. In order to classify these different crystals, the existence of certain lines within the crystal, called axes, is assumed, around which the form can be symmetrically build up. These axes are assumed to intersect in the center of the crystal, and to pass through from one side to the other." — Hallock, 1905

First Right Square Prism

"Science has succeeded in classifying the thousands of known crystals in six systems, to each of which…

A flashcard featuring an illustration of a Right Triangle

Flashcard of a Right Triangle

A flashcard featuring an illustration of a Right Triangle

Illustration of the projection of a hexagonal pyramid that is in a right position.

Projection Of Hexagonal Pyramid

Illustration of the projection of a hexagonal pyramid that is in a right position.

"A force pushing a weight from C to D, only raises it through the perpendicular height, E D, by acting along the whole length of the plane, C D; and if the plane be twice as it is high, one pound at B, acting over the pulley, D, would balance two pounds at A, or any where on the plane; and so of all other quantities and proportions." — Goodrich, 1844

Inclined plane

"A force pushing a weight from C to D, only raises it through the perpendicular height, E D, by acting…

Illustration of a ladder leaning against the side of a building (wall) to form a right triangle .

Ladder Leaning Against a Building

Illustration of a ladder leaning against the side of a building (wall) to form a right triangle .

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a right triangle .

Ladder Leaning Against a Tree

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a…

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a right triangle .

Ladder Leaning Against a Tree

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a…

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a right triangle .

Ladder Leaning Against a Tree

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a…

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a right triangle .

Ladder Leaning Against a Tree

Illustration of a ladder leaning against a palm tree, that is perpendicular to the ground, to form a…

Illustration of 2 ladders leaning against opposite sides of a palm tree to form similar right triangles. The angles of elevation from the ground to where the ladders meet the tree are congruent. Illustration can be used for problems involving proportions.

2 Ladders Leaning Against a Tree

Illustration of 2 ladders leaning against opposite sides of a palm tree to form similar right triangles.…

Illustration of 3 ladders leaning against the side of a building (wall) to form right triangles. The distance from the base of the ladders to the wall is the same for all three ladders.

3 Ladders Leaning Against a Wall

Illustration of 3 ladders leaning against the side of a building (wall) to form right triangles. The…

"Lines of force of a circular loop. If a current flow through the loop in the direction indicated, the lines of force both inside and outside the loop, will cross the plane of the loop at right angles, and all those which cross the loop on the inside will pass through the plane in one direction...while all on the outside will return through the plane in the opposite direction." -Hawkins, 1917

Lines of Force

"Lines of force of a circular loop. If a current flow through the loop in the direction indicated, the…

"Right octahedron with rhombic base." — Hallock, 1905

Octahedron

"Right octahedron with rhombic base." — Hallock, 1905

"Right octahedron with rhombic base." — Hallock, 1905

Octahedron

"Right octahedron with rhombic base." — Hallock, 1905

"Oblique rhombic octahedron." — Hallock, 1905

Octahedron

"Oblique rhombic octahedron." — Hallock, 1905

"The effect of holding polarizing lenses at right angles to each other." -Avery 1895

Polarization of Light

"The effect of holding polarizing lenses at right angles to each other." -Avery 1895

"Right rhombic prism." — Hallock, 1905

Prism

"Right rhombic prism." — Hallock, 1905