Multiple choice

If the ratio of Area and diameter of a circle is 35 : 14 then find the circumference of the circle. यदि वृत्त के क्षेत्रफल और उसके व्यास का अनुपात 35 : 14 है तो वृत्त की परिधि ज्ञात कीजिए।

  1. 7

  2. 10

  3. 12

  4. 18
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Area = πr², diameter = 2r. Given πr² / 2r = 35/14, so πr/2 = 35/14, which gives r = 5/π. Circumference = 2πr = 2π × (5/π) = 10. The π terms cancel out conveniently.

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