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Find the area of a trianlge whose sides are 150 cm, 120 cm and 130 cm. (Heron's Formula)

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Let a be 150 cm, b be 120 & c be 130 cm

                 s = \frac{150+120+130}{2}
                        s = 400/2
                        s = 200

Area according to Heron's Formula,
                        \sqrt{s(s-a)(s-b)(s-c)} cm²
                   =   \sqrt{200(200-150)(200-120)(200-130)}  cm²
                   =  \sqrt{200*50*80*70}  cm²
                   =  \sqrt{56000000}
                   = 7483.31 cm²
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