If A is the area of a triangle with side length a, b and c and s is (a+b+c)/2 ( known as the semiperimeter of the triangle) Then, Heron's formula tells us that A=square root of [s(s-a)(s-b)(s-c)].
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What is the formula for a triangular prism
aryabhatt's quadratic formula
A Formula
The formula is: Number of sides = 6.
Its called 'swami dhadacharya' formula