Area of Circle

What is the formula to calculate the area of a circle?

• A = πr^2

• A = r^2

• A = 0.5πr^2

• A = 2πr

Tags

CCSS.7.G.B.4

If the radius of a circle is 5 cm, what is the area of the circle? (Use π = 3.14)

• 62.8 cm^2

• 78.5 cm^2

• 39.25 cm^2

• 15.7 cm^2

Tags

CCSS.7.G.B.4

A circle has a radius of 8 meters. What is the area of the circle? (Use π = 3.14)

• 100.48 square meters

• 64.32 square meters

• 150.72 square meters

• 200.96 square meters

Tags

CCSS.7.G.B.4

Find the area of a circle with a radius of 10 cm. (Use π = 3.14)

• 314 square cm

• 100 square cm

• 400 square cm

• 200 square cm

Tags

CCSS.7.G.B.4

Calculate the area of a circle with a radius of 6 inches. (Use π = 3.14)

• 36 square inches

• 18.84 square inches

• 45.36 square inches

• 113.04 square inches

Tags

CCSS.7.G.B.4

If the radius of a circle is 12 cm, what is the area of the circle? (Use π = 3.14)

• 94.26 square cm

• 150.72 square cm

• 528.36 square cm

• 452.16 square cm

Tags

CCSS.7.G.B.4

A circle has a radius of 15 meters. What is the area of the circle? (Use π = 3.14)

• 1200 square meters

• 706.5 square meters

• 450 square meters

• 225 square meters

Tags

CCSS.7.G.B.4

Find the area of a circle with a radius of 4 cm. (Use π = 3.14)

• 25.12 cm^2

• 36.48 cm^2

• 16.36 cm^2

• 50.24 cm^2

Tags

CCSS.7.G.B.4

Calculate the area of a circle with a radius of 7 inches. (Use π = 3.14)

• 44.12 square inches

• 98.76 square inches

• 21.56 square inches

• 153.86 square inches

Tags

CCSS.7.G.B.4

If the radius of a circle is 9 cm, what is the area of the circle? (Use π = 3.14)

• 162.68 cm^2

• 81.34 cm^2

• 113.56 cm^2

• 254.34 cm^2

Tags

CCSS.7.G.B.4