Triangle Vocabulary

Front

Triangle that has two congruent sides

Back

Isosceles Triangle

Front

Triangle that has three congruent sides

Back

Equilateral Triangle

Front

Triangle that has no congruent sides

Back

Scalene Triangle

Front

Triangle that has one obtuse angle

Back

Obtuse Triangle

Front

Triangle that has three congruent angles

Back

Equiangular Triangle

Front

Triangle that has three acute angles

Back

Acute Triangle

Front

Triangle that has one right angle

Back

Right Triangle

Front

Sum of the interior angles of a triangle

Back

180°

Front

Is ∠1 in this picture interior or exterior?

Back

exterior

Front

The _____________ connects a midpoint of a side in a triangle to the opposite vertex.

Back

median