Quiz about Area and Circumference of Circles

Question 1

Find the area of a circle with a diameter of 6 inches.

Accepted Answer

$$28.26in^2$$

Answer

$$18.84in^2$$

Answer

$$18.48in^2$$

Answer

$$28.62in^2$$

Question 2

$$\ Find\ the\ area\ of\ the\ pizza\ with\ a\ diameter\ of\ 8in.\ A\ of\ a\ circle=\pi r^2$$

Accepted Answer

$$50.24in^2$$

Answer

$$45.54in^2$$

Answer

$$35.24in^2$$

Answer

$$55.85in^2$$

Question 3

FInd the area of a circle that has a diameter of 4 cm.

Accepted Answer

$$12.56cm^2$$

Answer

$$15cm^2$$

Answer

$$12cm^2$$

Answer

$$14.56cm^2$$

Question 4

A circle has a radius of 9. What is it's area?

Accepted Answer

254.47

Answer

63.62

Answer

245.74

Answer

1017.88

Question 5

Max has a pizza with a diameter of 100 inches. What is it's area?

Accepted Answer

7853.98

Answer

31415.93

Answer

785.398

Answer

3141.593

Question 6

What is the area of a circle with a radius of 6cm?

$$A=\pi\cdot r^2$$

Accepted Answer

113.04

Answer

18.84

Answer

50.24

Question 7

What is the diameter of the pictured circle?

Accepted Answer

16 cm

Answer

4 cm

Answer

8 cm

Answer

12 cm

Question 8

Find the circumference (round to the nearest hundredth).

Accepted Answer

28.26 cm

Answer

14.13 cm

Answer

26.28 cm

Answer

56.52 cm

Question 9

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference?

Accepted Answer

10.99 ft

Answer

11.32 ft

Answer

12.25 ft

Answer

8.75 ft

Question 10

Find the circumference (round to the nearest hundredth).

Accepted Answer

25.12 cm

Answer

2.55 cm

Answer

8.36 cm

Answer

12.56 cm

Area and Circumference of Circles

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