4.1 Test Review Quizizz

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

• A = π·d

• C = 2·π·r

• A = π·r²

• C = π·d

Tags

CCSS.7.G.B.4

The diagram shows the spot on a basketball court called the “key”. What is the area of the key? Use 3.14 for ∏ .

• 284.52 ft2
• 228 ft2
• 317 ft2
• 116.71 ft2

What is the ratio of the circumference to the diameter if the circumference is 250 and the diameter is 80?

• 80 / 250
• 250 / 40
• 40 / 250
• 250 / 80

Tags

CCSS.7.G.B.4

A circle has a diameter of 7.6 feet. Which measurement is closest to the circumference of the circle in feet?

• 23.9 ft

• 45.3 ft

• 47.7 ft

• 11.9 ft

Tags

CCSS.7.G.B.4

What is the radius?

• 10 in

• 5 in

• 20 in

Tags

CCSS.7.G.B.4

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 circumference of a dinner plate with a radius of 4.5 inches?

• 28.27 inches
• 27.26 inches
• 29.26 inches
• 30.26 inches

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 8 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 50.27 m²

Tags

CCSS.7.G.B.4

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²
• 45.6 cm²
• 50.24 cm²
• 55.9 cm²

Tags

CCSS.7.G.B.4

Mr. Smith wants to cover his circular pool. If the pool has a diameter of 13 feet how much fabric would he need to cover the pool? (round to the nearest whole number)

• 41 ft²

• 133 ft²

• 250 ft²

• 531 ft²

Tags

CCSS.7.G.B.4