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Two square fields have areas in the ratio 16 : 9. The ratio of their PERIMETERS is:
A16 : 9
B4 : 3
C8 : 6 (i.e. 4 : 3)
D256 : 81
Answer & Solution
Correct answer: B. 4 : 3
If the areas are in ratio 16 : 9, then the sides are in ratio √16 : √9 = 4 : 3 (taking square roots of the areas gives the sides). The perimeter is 4 × side, so the perimeters are also in the ratio 4 : 3. Options B and C are the same ratio; B is in lowest form.
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