Circumference and Area of Circles ADV

find the area of the circle with radius 3 cm below.

• 100 cm²
• 225 cm²
• 9 cm²
• 28.26 cm²

Tags

CCSS.7.G.B.4

What is the area of the shaded region?

• 4 cm²
• 16 cm²
• 8 cm²
• 12 cm²

The diagram shows two small circles inside a large circle. The large circle has a radius of 8 cm.

Each of the two small circles has a diameter of 4 cm.

Work out the area of the region shown shaded in the diagram. Give your answer correct to one decimal place.

Tags

CCSS.7.G.B.4

What is the area of this circle in terms of pi?

Tags

CCSS.7.G.B.4

Find the radius of the circle given the above information:

• 18.5 m

• 4.3 m

• 8.6 m

• 9 m

Tags

CCSS.7.G.B.4

A circle has an area of 36π. What is the circumference of the circle?

• 18π

• 12π

• 6π

• 36π

Tags

CCSS.7.G.B.4

Find the diameter of the circle given the above information:

• 75.7 ft

• 8.9 ft

• 17.9 ft

• 9 ft

Tags

CCSS.7.G.B.4

Sally tried to solve for the area of circle. Her work is shown. What mistake did Sally make.

• Sally squared π incorrectly.

• Sally multiplied the π and radius incorrectly.

• Sally used diameter instead of the radius.

• No mistake. Sally solved the problem correctly.

Tags

CCSS.7.G.B.4

Find the diameter of the circle given the above information.

• 6.0 cm

• 3.0 cm

• 5 cm

• 9.4 cm

Tags

CCSS.7.G.B.4

Find the circumference of the circle given the above information:

• 132.3 mi

• 23 mi

• 11.5 mi

• 72.3 mi

Tags

CCSS.7.G.B.4