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SSC CHSL 2021 PYQ — Question 71

SSC CHSL - 13 April 2021 - Shift 1 • Quantitative Aptitude • Q71

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What is the perimeter of a right - angled triangle whose sides (making 90º )are 203{20\sqrt{3}} cm and 153{15\sqrt{3}} cm?

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Correct answer: B

Explanation

The correct answer is Option 2 i.e.  603{60\sqrt{3}} cm.

Given that

Two Sides of a right angled triangle =   203{20\sqrt{3}} cm and 153{15\sqrt{3}} cm

By Pythagorus theorem  we calculate the third side 

Third side = sqrt ((203{20\sqrt{3}})2 + (153{15\sqrt{3}})2) = 25√3

Now,  perimeter of triangle = (20 + 15 + 25 ) √3 = 60√3