Area and Perimeter Practice Test 2

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Question : 37 of 40

Marks: +1, -0

The areas of two circular fields are in the ratio of 16 : 49. If the radius of the latter is 14m, then radius of the former is:

2 m
4 m
8 m
12 m

Solution:

Here,

{πr_1^2}/{πr_2^2}

=

{16}/{49}

∴

r_1/r_2

=

4/7

∴

r_1

=

4/7 × 14

= 8 m

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