Properties of Trapezoids

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

How many pairs of parallel sides does a trapezoid have?

Back

A trapezoid has exactly 1 pair of parallel sides.

Front

What are the bases of a trapezoid?

Back

The bases of a trapezoid are the two parallel sides.

Front

What is the sum of the lengths of the bases in a trapezoid with bases of 14 cm and 22 cm?

Back

The total length of the bases is 36 cm.

Front

What are the base angles of an isosceles trapezoid?

Back

The base angles of an isosceles trapezoid are congruent.

Front

What does it mean for angles to be congruent?

Back

Congruent angles are angles that have the same measure.

Front

What are the legs of an isosceles trapezoid?

Back

The legs of an isosceles trapezoid are the non-parallel sides that are congruent.

Front

What is the property of the legs in an isosceles trapezoid?

Back

The legs of an isosceles trapezoid are congruent.

Front

What is the relationship between consecutive angles in a trapezoid?

Back

In a trapezoid, each pair of consecutive angles is supplementary (adds up to 180 degrees).

Front

What is a supplementary angle?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.