Question

please explain the last step​

Answer 1

Area of the triangle is given as √s(s-a)(s-b)(s-c)

4 × √s(s-a)(s-b)(s-c)

4 × area of the triangle..

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Answer 2

it means that we have to multiply the area of triangle by 4 as are of triangle is √s(s-a)(s-b)(s-c)