Q. 84.3( 9 Votes )

Let Δ be the area of a triangle. Find the area of a triangle whose each side is twice the side of the given triangle.

Answer :

When each side of triangle = a


When a, b and c are the sides of triangle and s is the semi-perimeter, then its area is given by:


A = where [Heron’s Formula]



A’ = where [Heron’s Formula]


When each side of triangle = 2a


= = 2


A’ =


A’ = = 4= 4A


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