A right triangle with degrees 28, 62, 90.

Right Triangle degrees 28, 62, 90

A right triangle with degrees 28, 62, 90.

A right triangle with degrees 29, 61, 90.

Right Triangle degrees 29, 61, 90

A right triangle with degrees 29, 61, 90.

A right triangle with degrees 30, 60, 90.

Right Triangle degrees 30, 60, 90

A right triangle with degrees 30, 60, 90.

A right triangle with degrees 31, 59, 90.

Right Triangle degrees 31, 59, 90

A right triangle with degrees 31, 59, 90.

A right triangle with degrees 32, 58, 90.

Right Triangle degrees 32, 58, 90

A right triangle with degrees 32, 58, 90.

A right triangle with degrees 33, 57, 90.

Right Triangle degrees 33, 57, 90

A right triangle with degrees 33, 57, 90.

A right triangle with degrees 34, 56, 90.

Right Triangle degrees 34, 56, 90

A right triangle with degrees 34, 56, 90.

A right triangle with degrees 35, 55, 90.

Right Triangle degrees 35, 55, 90

A right triangle with degrees 35, 55, 90.

A right triangle with degrees 36, 54, 90.

Right Triangle degrees 36, 54, 90

A right triangle with degrees 36, 54, 90.

A right triangle with degrees 37, 53, 90.

Right Triangle degrees 37, 53, 90

A right triangle with degrees 37, 53, 90.

A right triangle with degrees 38, 52, 90.

Right Triangle degrees 38, 52, 90

A right triangle with degrees 38, 52, 90.

A right triangle with degrees 39, 51, 90.

Right Triangle degrees 39, 51, 90

A right triangle with degrees 39, 51, 90.

A right triangle with degrees 40, 50, 90.

Right Triangle degrees 40, 50, 90

A right triangle with degrees 40, 50, 90.

A right triangle with degrees 41, 49, 90.

Right Triangle degrees 41, 49, 90

A right triangle with degrees 41, 49, 90.

A right triangle with degrees 42, 48, 90.

Right Triangle degrees 42, 48, 90

A right triangle with degrees 42, 48, 90.

A right triangle with degrees 43, 47, 90.

Right Triangle degrees 43, 47, 90

A right triangle with degrees 43, 47, 90.

A right triangle with degrees 44, 46, 90.

Right Triangle degrees 44, 46, 90

A right triangle with degrees 44, 46, 90.

A right triangle with degrees 45, 45, 90.

Right Triangle degrees 45 45, 90

A right triangle with degrees 45, 45, 90.

All triangles formed by a tangent and the asymptotes of an hyperbola are equal in area.

Hyperbola Tangent Triangles

All triangles formed by a tangent and the asymptotes of an hyperbola are equal in area.

The three points in which any line cuts the sides of a triangle and the projections, from any point in the plane, of the vertices of the triangle on to the same line are six points in involution.

Involution

The three points in which any line cuts the sides of a triangle and the projections, from any point…

Aronhold stated if any three bodies have plane motion their three virtual centers are three points on one straight line

Centrodes

Aronhold stated if any three bodies have plane motion their three virtual centers are three points on…

An instrument for making a reduced, enlarged, or exact copy of a plane figure

Pantograph

An instrument for making a reduced, enlarged, or exact copy of a plane figure

Method to construct an equilateral triangle

Construct Equilateral Triangle

Method to construct an equilateral triangle

Method to construct an isosceles triangle

Construct Isosceles Triangle

Method to construct an isosceles triangle

Method to construct a scalene triangle

Construct Scalene Triangle

Method to construct a scalene triangle

Draftsman's method to draw a tangent, AB, to a circle

Tangent To A Circle

Draftsman's method to draw a tangent, AB, to a circle

Six equal circles tangent to each other and to the sides of the triangle

Circle Triangle Tangents

Six equal circles tangent to each other and to the sides of the triangle

Two dimensional view of the cuts required to create the conic sections hyperbola, parabola, ellipse, and circle.

Conic Sections 2D

Two dimensional view of the cuts required to create the conic sections hyperbola, parabola, ellipse,…

Draftsman's first method for creating an ellipse

Ellipse First Method

Draftsman's first method for creating an ellipse

Draftsman's third method for drawing an ellipse

Ellipse Third Method

Draftsman's third method for drawing an ellipse

Draftsman's fifth method for drawing an ellipse

Ellipse Fifth Method

Draftsman's fifth method for drawing an ellipse

An orthographic projection of a pyramid from three dimensional space into two dimensional space

Orthographic Pyramid Projection

An orthographic projection of a pyramid from three dimensional space into two dimensional space

Inclined plane using right triangle and proportions

Inclined Plane Triangle

Inclined plane using right triangle and proportions

Triangle diagram for measuring heights of trees using proportions.

Using Proportions To Find Heights of Trees

Triangle diagram for measuring heights of trees using proportions.

Triangle diagram for measuring heights of trees using proportions

Using Proportions To Find Heights of Trees

Triangle diagram for measuring heights of trees using proportions

Triangle, triangular polygon

Triangular Polygon

Triangle, triangular polygon

Right triangle with square

Right Triangle

Right triangle with square

Triangle with medians drawn.

Triangle with Medians

Triangle with medians drawn.

Parallelogram illustration to show where the area of a triangle formula comes from.

Area of Triangle

Parallelogram illustration to show where the area of a triangle formula comes from.

Triangle with dimensions labeled. Triangle can be used to calculate area.

Triangle With Dimensions

Triangle with dimensions labeled. Triangle can be used to calculate area.

Triangle with dimensions labeled. Triangle can be used to calculate area.

Triangle With Dimensions

Triangle with dimensions labeled. Triangle can be used to calculate area.

Pentagon with dimensions labeled. Pentagon can be used to calculate area by calculating individual triangles and finding the sum of the areas.

Pentagon With Triangular Sections For Area

Pentagon with dimensions labeled. Pentagon can be used to calculate area by calculating individual triangles…

Triangle with sides a, b, c and angles A, B, C labeled.

Triangle

Triangle with sides a, b, c and angles A, B, C labeled.

Triangle with sides labeled with numerals 28, 36, 40 and angles A, B, C labeled.

Triangle 28, 36, 40

Triangle with sides labeled with numerals 28, 36, 40 and angles A, B, C labeled.

Right triangle with squares that can be used to illustrate the Pythagorean Theorem.

Pythagorean Theorem Triangle

Right triangle with squares that can be used to illustrate the Pythagorean Theorem.

Right triangle with sides a, b, c and angles A, B, C labeled.

Right Triangle ABC

Right triangle with sides a, b, c and angles A, B, C labeled.

Triangle with labels A, B, C, D

Triangle

Triangle with labels A, B, C, D

Similar triangles with corresponding sides labeled.

Similar Triangles

Similar triangles with corresponding sides labeled.

Similar triangles with corresponding sides labeled.

Similar Triangles

Similar triangles with corresponding sides labeled.

Illustration of similar triangles used to find distance across a stream

Similar Triangles for Distance Across Stream

Illustration of similar triangles used to find distance across a stream

Illustration of similar triangles used to find distance across a lake.

Similar Triangles for Distance Across Lake

Illustration of similar triangles used to find distance across a lake.

Illustration of similar triangles used to find height of smokestack.

Similar Triangles for Height of Smokestack

Illustration of similar triangles used to find height of smokestack.

Illustration of roof and rafter with rise and run to show pitch.

Pitch of Roof

Illustration of roof and rafter with rise and run to show pitch.

Sketch of isosceles triangle with labels.

Isosceles Triangle

Sketch of isosceles triangle with labels.

Square with diagonal and angles labeled.

Square

Square with diagonal and angles labeled.

Sketch of equilateral triangle with bisectors, medians, and altitudes.

Equilateral Triangle

Sketch of equilateral triangle with bisectors, medians, and altitudes.

30-60-90 Right Triangle

Triangle 30-60-90

30-60-90 Right Triangle

Regular hexagon with equilateral triangles divided in the interior.

Regular Hexagon

Regular hexagon with equilateral triangles divided in the interior.

Steam pipe illustration of 30-60-90 triangle.

Triangle Steam Pipe

Steam pipe illustration of 30-60-90 triangle.

30-60-90 right triangle.

30-60-90 Right Triangle

30-60-90 right triangle.