Circles Unit Test

The circumference of a circle is 18∏ inches. What is the radius of the circle?

Tags

CCSS.7.G.B.4

If the diameter of a circle is 10 cm, what is its radius?If the diameter of a circle is 10 cm, what is its radius?

• 2.5 cm

• 5 cm

• 20 cm

• 25 cm

Tags

CCSS.7.G.B.4

The circumference of a circle is 40π feet. What is the diameter of the circle?

• 10 ft

• 40 ft

• 20 ft

• 80 ft

Tags

CCSS.7.G.B.4

Big Ben is a famous clock tower in London, England. The radius of the clock face is 13 feet. Find the circumference of the clock face to the nearest foot.

• 82 feet

• 26 feet

• 41 feet

• 257 feet

Tags

CCSS.7.G.B.4

What is the equation of the circle shown in the graph?

Mathematical Equivalence

ON

Tags

CCSS.HSG.GPE.A.1

The radius of a circle is

• The distance from the center of a circle to an edge of the circle

• The distance around the circle

• The distance from an edge of the circle to another edge through the center

• The center of the circle

What does "circumference" mean?

• Space a circle takes up

• Line from one side of a circle to another

• Distance around a circle

• Line from center of circle to side

Which equation could be used to find the area in square inches of a circle with a diameter of 12 inches?

Tags

CCSS.7.G.B.4

Find the area of the face of the Virginia quarter with a diameter of 24 millimeters. Leave your answer in terms of ∏.

Tags

CCSS.7.G.B.4

What is the exact circumference of its border?

• 3 feet

• 9 feet

Tags

CCSS.7.G.B.4