Unit 9 Review

______________ is the distance around the circle.

• volume

• area

• circumference

• diameter

______________ angles have a sum of 90 degrees.

• complementary

• supplementary

• neither

Supplementary angles have a sum of __________

• 90

• 180

• 100

• 360

A composite figure is a figure that is made up of _________________.

• exactly 3 different shapes always.

• Just 1 shape

• 5 or more shapes

• 2 or more shapes.

To find the shaded region of a figure, you must find the area of both and then___________.

• add

• subtract

• multiply

• divide

The value 4.5 in the image represents which of the following?

• area

• diameter

• circumference

• radius

 $\Pi r^2\ and\ \ \Pi\times r\times r\$  can both be used to find the ___________ of a circle.

• area

• circumference

• volume

• diameter

The triangle shown above is a ______________ triangle.

• Isosceles

• Scalene

• Equilateral

• Right

True or False

• True

• False

A circle has a diameter of 5.6 feet. Which measurement is closest to the circumference of the circle in feet?

• 35.2 ft

• 17.6 ft

• 8.8 ft