830 Chapter 5.5

Front

What is a trapezoid?

Back

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

Front

When do trapezoids have congruent base angles?

Back

Trapezoids have congruent base angles sometimes, specifically in isosceles trapezoids.

Front

Is a rectangle always a rhombus?

Back

No, a rectangle is sometimes a rhombus, specifically when all sides are equal.

Front

Is a rectangle always a square?

Back

No, a rectangle is sometimes a square, specifically when all sides are equal.

Front

What are supplementary angles?

Back

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

Front

What does it mean for angles to be congruent?

Back

Congruent angles are angles that have the same measure.

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

What is the formula for the area of a trapezoid?

Back

The area of a trapezoid is given by the formula: Area = (1/2) * (Base1 + Base2) * Height.

Front

What is the value of x if 2x + 5 = 27?

Back

x = 11.

Front

What is the value of x if 3x - 4 = 17?

Back

x = 7.