Find the area of a triangle whose sides measure 13 cm, 14 cm and 15 cm – InterviewSolution

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1.

Find the area of a triangle whose sides measure 13 cm, 14 cm and 15 cm.

Answer»

Let a = 13, b = 14 and c = 15. Then, S = (1/2)(a + b + c) = 21.

(s- a) = 8, (s - b) = 7 and (s - c) = 6.

Area = (s(s- a) (s - b)(s - c))^(1/2)

= (21 *8 * 7*6)^(1/2)

= 84 cm² .

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