Triangles/Quadrilaterals Vocab Review

Front

Has at least 2 congruent sides

Back

Isosceles triangle

Front

3 angles < 90°

Back

acute triangle

Front

No congruent sides:

Back

Scalene triangle

Front

1 angle = 90°

Back

right triangle

Front

Two angles that sum to 90°

Back

Complementary angles

Front

A line at 90° to another line, plane, or surface.

Back

Perpendicular line

Front

Sum of two remote interior angles

Back

Exterior angle theorem

Front

Angles in a logical sequence

Back

Consecutive angles

Front

Divide into two equal parts

Back

bisect

Front

3 congruent sides

Back

equilateral triangle