Module 4 Topic D Vocabulary

Front

Equilateral triangle

Back

A triangle with three congruent sides

Front

Isosceles triangle

Back

A triangle with at least two congruent sides

Front

What is a scalene triangle?

Back

A triangle with no congruent sides

Front

What is an obtuse triangle?

Back

A triangle with one obtuse angle

Front

What is a right triangle?

Back

A triangle with one right angle

Front

What is an acute triangle?

Back

A triangle that contains only acute angles

Front

What is a trapezoid?

Back

A quadrilateral with at least one pair of parallel sides

Front

What is a parallelogram?

Back

A quadrilateral with two pairs of parallel sides

Front

What is a rectangle?

Back

A quadrilateral with four right angles

Front

What is a square?

Back

A quadrilateral with four right angles and four congruent sides