Quiz about Area of Circles Review

Question 1

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

Accepted Answer

A = $$\pi r^2$$

Answer

A = $$\pi d$$

Answer

A = $$2\pi r$$

Answer

A = $$2\pi d$$

Question 2

Which of the following must be used to calculate the area of a circle?

Accepted Answer

radius

Answer

diameter

Question 3

If given the diameter, how do you find the radius?

Accepted Answer

Divide by 2

Answer

Multiply by 2

Answer

Add 2

Answer

Subtract 2

Question 4

What is the area of the circle given?

Accepted Answer

200.96 $$ft^2$$

Answer

50.24 $$ft^2$$

Answer

25.12 $$ft^2$$

Question 5

What is the area of the given circle?

Accepted Answer

113.04 $$in^2$$

Answer

37.68 $$in^2$$

Answer

452.16 $$in^2$$

Answer

18.84 $$in^2$$

Question 6

A circle has a radius of 5. What is the area of the circle?

Round to the nearest tenths place.

Accepted Answer

78.5

Answer

31.4

Answer

314.0

Question 7

The diameter of a circle is 6. What is the area of the circle?

Round to the nearest tenths place.

Accepted Answer

28.3

Answer

113.0

Answer

37.7

Answer

18.8

Question 8

What is the area of a circle with a radius of 12?

Round to the nearest tenths place.

Accepted Answer

452.2

Answer

75.4

Answer

113.0

Answer

37.7

Question 9

What is the area of a circle with a diameter of 5?

Round to the nearest tenths place.

Accepted Answer

19.6

Answer

78.5

Answer

31.4

Answer

15.7

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