Circumference Area Circles

Mark has a circlular fire pit with a diameter of 5 feet. Build a brick border around the pit. Find the area of pit. Complete the statements about Mark's circular pit. To build the border, Mark needs a minimum of feet​ (a)   The area of the pit, to the nearest square foot is ​ (b)  

• 16

• 20 sq ft

• 7

• 8

• 9

• 15

• 8 sq ft

• 79 sq ft

• 314 sq ft

Tags

CCSS.7.G.B.4

The diameter of a circle is 7.5 inches. What is it's radius?

• 3.75 inches

• 15 inches

• 23.55 inches

Tags

CCSS.7.G.B.4

What is the area of a circle that has a radius of 100 miles?

• 7,850 miles 

• 10,000 miles

• 31,400 miles

Tags

CCSS.7.G.B.4

Find the area for a circle with a diameter of 8 feet. 

• 200.96 feet 

• 25.12 feet 

• 12.56 feet 

• 50.24 feet

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 14.4 meters?

• 651.1 meters

• 2604.44 meters

• 162.7 meters

Tags

CCSS.7.G.B.4

Ms. Boyett wants to build a circular swimming pool with a fountain in the center. She wants the fountain to be 18.6 feet from the edge of the pool. What would the distance be around the outside of the pool? 

• 116.8 yards

• 58.4 feet

• 58.4 yards

• 116.8 feet

Tags

CCSS.7.G.B.4

What is the area of this circle? Use the Pi button.

• 452.39 cm²

• 139.12 cm²

• 113.1 cm²

• 84.23 cm²

Tags

CCSS.7.G.B.4

Steven purchases a bowl. The diameter of the

bowl is 14 cm. What is the distance around the bowl? Use the Pi button.

• 21.98 cm

• 43.98 cm

• 87.96 cm

• 7 cm

Tags

CCSS.7.G.B.4

Which of the following is the most accurate definition of π ?

• The ratio of the circumference of any circle to its diameter.

• It is exactly 3.14

• It is exactly 3.1415

• It is exactly 3.141593

Tags

CCSS.HSG.GMD.A.1

What is the circumference of a circle with a diameter of 19.1 ft? Use 3.14 for Pi.

• 60.00 ft

• 35.17 ft

• 28.67 ft

• 47.17 ft

Tags

CCSS.7.G.B.4