Geometry - Area & Circumference of Circles PRACTICE

Find the area of the circle with radius of 10 feet.

• 100 $\pi$

• 25 $\pi$

• 400 $\pi$

• 20 $\pi$

Find the circumference of the circle with a diameter of 8 feet.

• 6 $\pi$

• 8 $\pi$

• 16 $\pi$

• 64 $\pi$

what is the circumference of this semicircle ?

d = 8 cm

• 25.12 cm²

• 12.56 cm

• 12.56 cm²

• 25.12 cm

Tags

CCSS.7.G.B.4

what is the area of a circle with the diameter of 10cm ?

• 66cm
• 78.5cm
• 66.5cm
• 10m

Tags

CCSS.7.G.B.4

What is the area of a circle when the radius is 6 ft?

• 113.04
• 452.16
• 37.68
• 123.15

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²
• 80 cm²
• 200.96 cm²
• 25.12 cm²

Tags

CCSS.7.G.B.4

Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging that costs $0.75 per foot. About how much will the edging cost? 

• $8.00
• $7.00
• $3.50
• $0.50

Tags

CCSS.7.G.B.4

A circle pool has a radius of 7.5 ft. Monica wants to know how many ft of a pool cover she needs to buy?

• 23.55 ft²
• 176.63 ft²
• 47.1 ft²
• 706.5 ft²

Tags

CCSS.7.G.B.4

If the area of a circle is $42.25\pi$ square inches, what is the circumference of the circle?

• 6.5 $\pi$  

• 13 $\pi$  

• 13

• 6.5

If the circumference of a circle is 119.32 cm, what is the area of the circle?

• 38.9 cm²

• 59.66 cm²

• 4,534.16 cm²

• 1,133.54 cm²