The side of triangle are 13 cm, 14cm and 15cm . the area of traingle is
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Doing by heron's formula
perimeter=13+14+15=42
semi-perimter=42/2=21
area=√s(s-a)(s-b)(s-c)
=√21(21-13)(21-14)(21-15)
=√21×8×7×6
=√7056
=84 square units
perimeter=13+14+15=42
semi-perimter=42/2=21
area=√s(s-a)(s-b)(s-c)
=√21(21-13)(21-14)(21-15)
=√21×8×7×6
=√7056
=84 square units
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