The Miscellaneous Triangles ClipArt gallery includes illustrations of isosceles, scalene, equilateral, obtuse, acute, concentric, and similar triangles. There are also images of real-world triangles that can be used in application problems, triangles with bisectors drawn, and triangles that are labeled to derive the area formula.

Illustration to show angle bisectors in a triangle. It is known as the incenter.

Illustration showing an isosceles triangle with a segment inside. This can be used to show that in an…

Illustration to show that if one of the legs of an isosceles triangle is produced through the vertex…

Illustration showing a triangle with a line parallel to the base and two intersecting lines.

Illustration to show lines drawn from the vertices to join at a point within the triangle.

Illustration to show the medians drawn to the legs of an isosceles triangle.

Illustration to show that if the lines joining the middle points of the sides of a triangle divide the…

Illustration to show altitudes in a triangle. It is known as the orthocenter.

Illustration of a triangle with a segment parallel to the base.

Illustration to show that if from any point in the base of an isosceles triangle parallels to the legs…

Illustration used to show the various parts of a triangle: sides, angles, medians, altitudes, bisectors,…

Illustration showing a perpendicular bisector of a triangle extended outside of the triangle.

Illustration to show that the perpendicular bisector of the base of an isosceles triangle passes through…

Illustration to show the perpendiculars dropped from any point in the equilateral triangle to the three…

Illustration to show the perpendiculars dropped from the midpoint of the base to the legs of an isosceles…

Illustration to show that the difference of the distances from any point in the base produced of an…

Illustration of a right triangle that can be used to show Pythagorean theorem. "In any right triangle,…

Illustration showing a triangle with an exterior segment drawn to show and exterior angle. This can…

Illustration of a triangle with interior segments and angles labeled.

Illustration of a triangle with interior segments and angles labeled.

Illustration of triangle ABC with BE extended through the triangle at point D. Segment AB is equal to…

Illustration of three isosceles triangles with the same base AC but varying heights (as B gets farther…

Illustration showing two equal triangles. This can be used to show that two triangles are equal if the…

Illustration to show if two triangles have two sides of the one equal, respectively, to two sides of…

An illustration showing an isosceles triangle in an equilateral triangle.

Illustration of an equilateral triangle inscribed in an equilateral triangle by joining the midpoints…

Illustration of an equilateral triangle inscribed in an equilateral triangle by joining the midpoints…

Illustration to show two triangles with the same base and on the same side of the base.

Illustration showing three triangles. This is used to show the following theorem: If two triangles have…