Area and Circumference of Circles and Semi Circles

The West Lighthouse lights up how much more area than the East Lighthouse?

Tags

CCSS.7.G.B.4

A circular sinkhole has a radius of 13 meters. A week later, it has a diameter of 104 meters. How much greater is the circumference of the sinkhole compared to the previous week?

• 612.3 m

• 285.74 m

• 244.92 m

• 256.02 m

Tags

CCSS.7.G.B.4

Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the circumference of the 
bowl?

• 28 cm
• 43.98 cm
• 87.96 cm
• 7 cm

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4

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

Tags

CCSS.7.G.B.4

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm

Tags

CCSS.7.G.B.4

Find the area of the composite figure.

• 100
• 400
• 137.5
• 175

Solve.

• 78.5 cm²
• 100 cm²
• 21.5 cm²
• 121.5 cm²

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in
• 2.5 in
• 15.7 in
• 31.4 in 

Tags

CCSS.7.G.B.4

What is the perimeter of the semi-circle?

• 11 yd
• 17.27 yd
• 34.54 yd
• 28.27 yd

Tags

CCSS.3.MD.D.8