Find the area of a triangle whose sides are 17 cm, 8 cm and 15 cm long – InterviewSolution

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1.	Find the area of a triangle whose sides are 17 cm, 8 cm and 15 cm long.
Answer» `75 cm^2` `60 cm^2` `45 cm^2` `120 cm^2` SOLUTION :Let a=17 cmb=8 cm and c=15 cm `:. " " s=(a+b+c)/(2) = (17+8+15)/(2) cm = 20 cm` By using Heron's formula, AREA `=SQRT(s(s-a)(s-b)(s-c))` `=sqrt(20(20-17)(20-8)(20-15))` `=sqrt(20xx3xx12xx5)` `=sqrt(4xx5xx3xx4xx3xx5)` `=4xx3xx5` `=60 cm^(2)`

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