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

Quantitative Aptitude ( CCS) Mensuration 2D

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

Let a = 13, b = 14 and c = 15. Then, s=(a+b+c)/2=21
(s- a) = 8, (s - b) = 7 and (s - c) = 6.
Area =√[s(s−a)(s−b)(s−c)] =√(21×8×7×6) = 84 sq.cm

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