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Multiple Choice Questions

What is the area of a circle whose area is equal to that of a triangle with sides 7 cm 24 cm and 25 ...........

Quantitative Aptitude (CDS) Mensuration 2D

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What is the area of a circle whose area is equal to that of a triangle with sides 7 cm, 24 cm and 25 cm?

80 cm²

84 cm²

88 cm²

90 cm²

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Explanation:

Semi perimeter of triangle = (a+b+c)/2 = (7+24+25)/2= 28 cm

Area of circle = Area of triangle = $\sqrt{s(s-a)(s-b)(s-c)}$

= $\sqrt{28(28-7)(28-24)(28-25)}= \sqrt{7056}= 84 cm^{2}$

By: Munesh Kumari

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