Question

If the ratio of areas of two circle is 4:25, then the ratio of their circumferences will be:

A 5:7 Correct Answer Incorrect Answer
B 3:4 Correct Answer Incorrect Answer
C 2:5 Correct Answer Incorrect Answer
D 6:7 Correct Answer Incorrect Answer

Solution

Ratio of area of two circles = (Ratio of radius)2 = 4:25 Ratio of Circumference = Ratio of radius Hence, Ratio of Circumference = √(4/25) = 2:5

Practice Next

Relevant for Exams:

×
×