Geometry. Kinds of triangles Geometry Kinds of triangles.

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Presentation transcript:

Geometry

Kinds of triangles

Geometry Kinds of triangles

Geometry Kinds of triangles equilateral

Geometry Kinds of triangles equilateral equiangular

Geometry Kinds of triangles

Geometry Kinds of triangles isosceles At least two congruent sides.

Geometry Kinds of triangles

Geometry Kinds of triangles scalene No congruent sides.

Geometry Kinds of triangles acute obtuse right

Geometry Kinds of triangles acute obtuse right

Geometry more definitions

Geometry polygons

Geometry polygons not polygons

Geometry vertex

Geometry altitude

Geometry altitude Every triangle has three altitudes.

Geometry median

Geometry median Every triangle has three medians.

Geometry segment bisector A B

Geometry angle bisector A B C Z

Geometry theorems

Geometry The sum of the angles of a triangle is always 180 o. A C B m└A + m└B + m└C = 180

Geometry Each exterior angle of a triangle is equal to the sum of the remote interior angles. A C B m└D = m└A + m└C D

Geometry Larger sides are opposite larger angles.

Geometry Smaller sides are opposite smaller angles.