Circles: Area & Circumference

What is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

What is the circumference of this circle?  (Round to the nearest whole number)

• 88 in
• 44 in
• 116  in
• 80 inches

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.

• A = 2π
• A = 8π
• A = 10π
• A = 4π

Find the area of the circle.  The radius is 7 cm. 

• 43.96 cm
• 153.86 cm
• 87.82 cm
• 307.72 cm

What is the area of this circle?

• 163.2 cm²
• 15.3 cm²
• 124.2 cm²
• 113.1 cm

Find the area of the circle

• 56.52
• 254.34
• 1017.36
• 113.04

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

The radius of this pizza is 9 ½ in. What is the approximate area of the pizza?

• 81 in²

• 29.83 in²

• 59 ⅔ in²

• 283 ½ in²

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

The diameter of a quarter is 24.26 mm. What is closest to the circumference of the outer edge of the quarter? Use 3.14 for Pi.

• 76.18 mm

• 38.01 mm

• 463 mm

• 1,848 mm

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

A sprinkler that sprays water in a circular area can be adjusted to spray up to 30 feet. To the nearest tenth, what is the maximum area of lawn that can be watered by the sprinkler?

• 188.4 ft²

• 706.5 ft²

• 183.6 ft²

• 2,826 ft²

Tags

CCSS.HSG.GMD.A.1