Area of a Circle Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Area of a Circle. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers
Q 1 - Find the area of following circle. Use π = 3.14

Area Quiz 3_1

Answer : C

Explanation

Step 1:

Given diameter = 16 ; radius r = 16/2 = 8 units

Step 2:

Area of Circle = πr2 = (3.14)(8)(8) = 200.96 square units

Q 2 - Find the area of following circle. Use π = 3.14

Area Quiz 3_2

Answer : A

Explanation

Step 1:

Given diameter = 30 ; radius r = 30/2 = 15 units

Step 2:

Area of Circle = πr2 = (3.14)(15)(15) = 706.5 square units

Q 3 - Find the area of following circle. Use π = 3.14

Area Quiz 3_3

Answer : B

Explanation

Step 1:

Given diameter = 13 ; radius r = 13/2 = 6.5 units

Step 2:

Area of Circle = πr2 = (3.14)(6.5)(6.5) = 132.67 square units

Q 4 - Find the area of following circle. Use π = 3.14

Area Quiz 3_4

Answer : D

Explanation

Step 1:

Given diameter = 20 ; radius r = 20/2 = 10 units

Step 2:

Area of Circle = πr2 = (3.14)(10)(10) = 314 square units

Q 5 - Find the area of following circle. Use π = 3.14

Area Quiz 3_5

Answer : A

Explanation

Step 1:

Given radius r = 0.5 units

Step 2:

Area of Circle = πr2 = (3.14)(0.5)(0.5) = 0.785 square units

Answer : B

Explanation

Step 1:

Given radius r = 9 units

Step 2:

Area of Circle = πr2 = (3.14)(9)(9) = 254.34 square units

Answer : D

Explanation

Step 1:

Given radius r = 13.5 units

Step 2:

Area of Circle = πr2 = (3.14)(13.5)(13.5) = 572.27 square units

Answer : C

Explanation

Step 1:

Given radius r = 6 units

Step 2:

Area of Circle = πr2 = (3.14)(6)(6) = 113.04 square units

Answer : B

Explanation

Step 1:

Given diameter = 28 ; radius r = 28/2 = 14 units

Step 2:

Area of Circle = πr2 = (3.14)(14)(14) = 615.44 square units

Q 10 - Find the area of following circle. Use π = 3.14

Area Quiz 3_10

Answer : A

Explanation

Step 1:

Given diameter = 11 ; radius r = 11/2 = 5.5 units

Step 2:

Area of Circle = πr2 = (3.14)(5.5)(5.5) = 94.99 square units


area_of_circle.htm

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