Area of a circle

what is the radius of a circle?

• A line from the center of a circle outwards

• A line that crosses straight across a circle

• The distance around the circle

Tags

CCSS.4.G.A.1

CCSS.4.MD.A.2

What is the diameter of a circle?

• A line from the center of a circle outwards

• A line that crosses straight across a circle

• The distance around a circle

Tags

CCSS.HSG.C.A.2

A circle has a diameter of 20 what is it's area?

• 314.16

• 1256.64

• 314.18

• 10

Tags

CCSS.7.G.B.4

A circle has a radius of 9. What is it's area?

• 63.62

• 245.74

• 254.47

• 1017.88

Tags

CCSS.7.G.B.4

A circle has a diameter of 1. What is it's area?

• 12.57

• 3.14

• 0.6241

• 0.79

Tags

CCSS.7.G.B.4

what is the formula for finding the area of a circle?

• 2r

• πr2

• 2πr

Tags

CCSS.7.G.B.4

Bob has a pool with a radius of 15 feet. What is the diameter of the pool?

• 15 feet

• 706.86

• 700.68

• 30 feet

Tags

CCSS.7.G.B.4

Bob has a pool with a radius of 15 feet. what is it's area?

• 706.86

• 176.71

• 225

• 167.17

Tags

CCSS.7.G.B.4

Max has a pizza with a diameter of 100 inches. What is it's radius?

• 50

• 200

• 31415.93

• 7853.98

Tags

CCSS.7.G.B.4

Max has a pizza with a diameter of 100 inches. What is it's area?

• 31415.93

• 7853.98

• 785.398

• 3141.593

Tags

CCSS.7.G.B.4