The area of a circle is $154 cm^2$. Find

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

The area of a circle is $154 cm^2$. Find the circumference of the circle. (Take $π =\frac{22}{7}$)

Options:

22 cm

28 cm

44 cm

56 cm

Correct Answer:

44 cm

Explanation:

Area of circle = $Πr^2$ = 154

$r^2$ = 154 × 7/22 = 49

r = 7

Circumference = 2Πr = 2 × 22/7 × 7 = 44 cm

The correct answer is Option (3) → 44 cm