Finding Unknown Angle Measures

Question 1

A fountain in the park has two circular pools that are the same size. What is the total area of the pools if the radius is 3 yards? Use 3.14 for and round the approximate area to the nearest tenth, if necessary. Check all that apply.

Revolt · Accepted Answer

C: 18 yd2; E: 56.5 yd2

Question 2

Which statements are true about the area of a circle? Check all that apply.

Revolt · Accepted Answer

B: Area = r2.; D: The area formula can be found by breaking apart the circle and forming a parallelogram.; E: The area of a circle is in square units.

Question 3

The area in terms of pi is

Revolt · Accepted Answer

C: 9

Question 4

What is the value of the diameter rounded to the nearest whole number?

Revolt · Accepted Answer

B: 38 m

Question 5

Use the base of the grassy area to find the approximate area of the circular garden. Use = 3.14. If necessary, round to the nearest tenth.

Revolt · Accepted Answer

B: 7.1 yd2

Question 6

The radius of the fountain and walkway together is .

Revolt · Accepted Answer

C: 9 ft

Question 7

The approximated value for the area is .

Revolt · Accepted Answer

C: 28.3 square miles

Question 8

What is the value of the radius rounded to the nearest whole number?

Revolt · Accepted Answer

A: 19 m

Question 9

The area in terms of pi of the fountain and the walkway together is π ft2.

Revolt · Accepted Answer

B: 81

Question 10

What is the approximate area of the circular pond rounded to the nearest whole number? m2

Revolt · Accepted Answer

B: 1,134

Finding Unknown Angle Measures Answers

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