Obtuse Triangle ABC With Height h
Triangle ABC with sides a,b,c labeled and angles A,B,C labeled and h labeled as height.
Orthocenter of Triangle
Illustration to show altitudes in a triangle. It is known as the orthocenter.
Triangle With Parallel Segment Drawn
Illustration of a triangle with a segment parallel to the base.
Parts Of A Triangle
Illustration used to show the various parts of a triangle: sides, angles, medians, altitudes, bisectors,…
Triangle With Perpendicular Bisector
Illustration showing a perpendicular bisector of a triangle extended outside of the triangle.
Perpendicular Bisector of the Base of an Isosceles Triangle
Illustration to show that the perpendicular bisector of the base of an isosceles triangle passes through…
Perpendiculars Dropped Any Point in the Equilateral Triangle
Illustration to show the perpendiculars dropped from any point in the equilateral triangle to the three…
Perpendiculars Dropped From Midpoint of Base to Legs of Isosceles Triangles
Illustration to show the perpendiculars dropped from the midpoint of the base to the legs of an isosceles…
Point in Base of Isosceles Triangle
Illustration to show that the difference of the distances from any point in the base produced of an…
Trigonometric Reference Triangles/Angles (60 degrees) Drawn in Quadrants
Trigonometric reference triangles/angles drawn for 60 degree reference angel in quadrants I and II.
Right Triangle
Illustration of a right triangle used to show the Pythagorean Theorem (the square of the hypotenuse…
Right Triangle with leg 13 and hypotenuse 15
Right triangle ABC with angles A, B, C labeled and leg of 13 with hypotenuse of 15.
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…
Inclined Plane Forming Right Triangle
Inclined plane forming right triangle showing the velocity of a body sliding a distance,s, down a smooth…
Right Triangle OCB With, x, y, and r shown
Right triangle OCB that can be used to show the relationships between x, y, r, and Θ.
Right Triangle Showing Pythagorean Theorem
Illustration of a right triangle that can be used to show Pythagorean theorem. "In any right triangle,…
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.
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 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.
Right Triangle With Midpoint of Hypotenuse Drawn
Illustration of a right triangle with the midpoint of the hypotenuse drawn.
Right Triangle With One Angle Double the Other
Illustration of a right triangle with one angle the double of the other.
Right Triangle With Side .024967 and Hypotenuse .04792
Right triangle with side .024967 and hypotenuse .04792.
Right Triangle With Sides 85 and 150
Illustration of a right triangle with legs labeled 150 and 85. This could be used to find the hypotenuse…
Rondinella Triangle
The Rondinella triangle is a modified triangle ruler, where the hypotenuse is outwardly bent.
Triangle With Segment Extended for Exterior Angle
Illustration showing a triangle with an exterior segment drawn to show and exterior angle. This can…
Segments Labeled In A Triangle
Illustration of triangle ABC with BE extended through the triangle at point D. Segment AB is equal to…
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…
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…
Zange Triangle
The Zange triangle is a modified triangle ruler, where one of the legs is longer making the hypotenuse…
Triangles ABC and ABC'
Triangle ABC and triangle ABC'. This illustration could be used to demonstrate the law of sines.
Circle Made Up Of Triangles
"A circle may be considered as made up of triangles whose bases form the circumference, and whose altitude…
Equal Triangles by Side Side Side
Illustration showing two equal triangles. This can be used to show that two triangles are equal if the…
Proof of Equal Triangles Drawing
Illustration to show if two triangles have two sides of the one equal, respectively, to two sides of…
Equilateral And Isosceles Triangles
An illustration showing an isosceles triangle in an equilateral triangle.
Equilateral Triangle Inscribed In An Equilateral Triangle
Illustration of an equilateral triangle inscribed in an equilateral triangle. The smaller triangle is…
Equilateral Triangles Inscribed In An Equilateral Triangle
Illustration of an equilateral triangle inscribed in an equilateral triangle by joining the midpoints…
Equilateral Triangles Inscribed In Equilateral Triangles
Illustration of an equilateral triangle inscribed in an equilateral triangle by joining the midpoints…
Equilateral Triangles Inscribed In Equilateral Triangles
Illustration of an equilateral triangle inscribed in an equilateral triangle by joining the midpoints…
Kelsey Triangles
The Kelsey triangle is a modified triangle ruler, where the hypotenuse is inwardly bent.