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SSC GD 2021 PYQ — Question 66

SSC GD Constable (English) - 18th November 2021 Shift 1 • Quantitative Aptitude • Q66

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The area (in m2) of a triangular field, whose sides are 85m, 85m, and 154m. is:

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Correct answer: C

Explanation

The correct answer is option 3 i.e. 2772

Sides of the triangle = 85 , 85 , 154m

S = (a + b + c)/2

s = (85 + 85 + 154)/2 = 162

Area of the triangle = s(s−a)(s−b)(s−c)\sqrt{ s(s-a)(s-b)(s-c)}

= 162×77×77×8\sqrt{162\times77\times77\times8}

= 2772 m2