Using Proportions To Find Heights of Trees
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
Pythagorean Theorem Triangle
Right triangle with squares that can be used to illustrate the Pythagorean Theorem.
Inscribed and Central Angles 30 60
Illustration of circle with inscribed angle 30 and central angle 60.
Circle With Sector and Segment labeled
Illustration of circle with sector and segment used to find area.
Circle With Sector and Segment labeled
Illustration of partial circle with sector and segment used to find area.
Circles With Radius 4000 and Enclosed Triangle
Illustration of circle with radius of 4000, and triangle with 45 degree angle enclosed.
Right Circular Cone 10 Feet High With 30 Degree Angle
An illustration of a right circular cone with altitude of 10 ft. and angle of 30 degrees.
Radians in Complete Circle
Illustration showing that the radian is an angle that when placed at the center of a circle its sides…
Model of Arc Length, Angle Measure, and Radius
Illustration showing that the arc length can be found by multiplying the angle measure by the radius…
Reference Angles/Triangles Formed by Angles in Quadrants
Lines drawn to horizontal to form triangle ratios (reference triangles, angles).
Reference Angles/Triangles Formed by Angles in Quadrants With Labels
Lines drawn to horizontal to form triangle ratios (reference triangles, angles). Axes, quadrants, abscissa,…
Right Triangle With Sides .64 and 1 and Angle of 40 degrees
Right triangle OQP with angle of 40 degrees, height of .64 inches, and hypotenuse of 1 inch.
Right Triangle With Sides .7 and 1 and Angle of 35 degrees
Right triangle OQP with angle of 35 degrees, height of .70 inches, and leg of 1 inch.
Special Right Triangle with Angles 45, 45, 90 degrees
Special right triangle with angles 45 degrees, 45 degrees, and 90 degrees with side measures/relationships…
Special Right Triangle with Angles 30, 60, 90 degrees
Special right triangle with angles 30 degrees, 60 degrees, and 90 degrees with side measures/relationships…
Trigonometric Reference Triangles/Angles (60 degrees) Drawn in Quadrants
Trigonometric reference triangles/angles drawn for 60 degree reference angel in quadrants I and II.
Trigonometric Reference Triangles/Angles Drawn in Quadrants
Trigonometric reference triangles/angles drawn for reference angel in quadrants I and II. This illustration…
Inclined Plane Forming Right Triangle
Inclined plane forming right triangle showing the velocity of a body sliding a distance,s, down a smooth…
Illumination of a Surface When the Surface is not Perpendicular to the Source
Illustration modeling the illumination on a surface when the surface is not perpendicular to hte rays…
Right Triangle ABC With Angle 67 degrees 42.8 minutes and Hypotenuse 23.47 ft.
Right triangle ABC with a base angle of 67 degrees 4208 minutes and a hypotenuse of 23.47 ft.
Right Triangle ABC With Leg 23.85 ft. and Hypotenuse 35.62 ft.
Right triangle ABC with a leg of 23.85 feet and a hypotenuse of 35.62 feet.
Perpendicular Line Drawn From Point P to Line RS
A perpendicular line drawn from point P to straight line RS.
Projection of a Line Segment
CD is the projection of AB upon OX. In each case AE=CD and AE=ABcos theta.
Vector Showing Force at Angle of 20 degrees
OP is a vector (directed quantity) showing the force by a weight acting on it at an angle of 20 degrees.
Angle of Elevation
Illustration showing an angle of elevation from a horizontal line to a line of sight.
Angle of Depression
Illustration showing an angle of depression from a horizontal line to a line of sight.
Triangular City Block With Angles and Lengths
Illustration showing an angle of 23 degrees 40 minutes making a triangle in a city block and marking…
Survey of Lake Front in Chicago
Illustration showing a survey on the lake front in Chicago with distances and angle measures shown.
Regular Pentagon With Circle Inscribed
Illustration showing a circle inscribed in a regular pentagon. Or, a regular pentagon circumscribed…
Right Triangle For Finding Distance Across a River
Right triangle ABC with angles A, B, C to be used for finding distance across a river. This is a trigonometry…
Circle With 36 degree Angles and Radius 1.5 in.
Circle with 36 degree angles marked. This diagram can be used with the following trig problem: Locate…
Circle With a Chord of 2 ft. and a Radius of 3 ft.
Circle with chord AB=2 ft. and radius OA = 3 ft.. Triangle AOC is a right triangle. Angle AOC=half angle…