Find the area of triangle whose sides are given a=5cm ,b=10and c=20cm.find area by herons formula
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Step-by-step explanation:
s= 5+10+20/2 =17
√s(s-a)(s-b)(s-c)
√17 (17-5)(17-10)(17-20)
√17*12*7*3
√17*2*3*2*7*3
2*3√17*2*7
6√238
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