Area Circumference Review

A sprinkler that sprays water in a circular area can be adjusted to spray up to 30 feet. To the nearest tenth, what is the maximum area of lawn that can be watered by the sprinkler?

• 188.4 ft²

• 706.5 ft²

• 183.6 ft²

• 2,826 ft²

Jacob is painting a circular picture on his wall.  If the painting has a diameter of 4 ft, how much paint will he need to cover the inside of the circle?  Is this question asking you to find the area, circumference, or neither?

• area

• circumference

• neither

A cruise ship has a large, circular window. It has a diameter of 6 meters. How many square meters of glass is the window made of? Round to the nearest hundredth.

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.27 m²

The space inside a two-dimensional (flat) object is called it's

• area

• perimeter

• volume

• circumference

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π

• C = 2π15

• c = 15 ÷ π

• c = 15 π

The homeowners association wants to enclose the playground in a fence. How much fencing will they need to purchase? Is this question finding the area or the circumference?

• area

• circumference

• neither

What is the circumference of this circle?  Round to the nearest tenth.

• 3.14 cm 

• 37.7 cm

• 24 cm

• 68.4 cm

Find the area of the circle

• 56.52

• 254.34

• 1017.36

• 113.04

Find the area of the circle.