6.6 Properties of Trapezoids

Front

What are the properties of trapezoids?

Back

Trapezoids have one pair of parallel sides called bases, and the non-parallel sides are called legs.

Front

In an isosceles trapezoid, what is true about the legs?

Back

The legs of an isosceles trapezoid are congruent.

Front

What are the base angles of an isosceles trapezoid?

Back

The base angles of an isosceles trapezoid are congruent.

Front

What is the sum of the interior angles of a trapezoid?

Back

The sum of the interior angles of a trapezoid is 360 degrees.

Front

In a trapezoid, what are the parallel sides called?

Back

The parallel sides are called bases.

Front

What is the relationship between the angles on the same side of a trapezoid?

Back

The angles on the same side of a trapezoid are supplementary.

Front

If one angle of a trapezoid measures 65 degrees, what is the measure of the adjacent angle?

Back

The adjacent angle measures 115 degrees.

Front

What is the definition of an isosceles trapezoid?

Back

An isosceles trapezoid is a trapezoid with congruent legs.

Front

How do you find the measure of an unknown angle in a trapezoid?

Back

Use the property that the sum of the angles on the same side is 180 degrees.

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 * (Base1 + Base2) * height.