C-16-Q016mediumsingle_mcq
For a triangle with sides and semi-perimeter , the area is —
For a triangle with sides and semi-perimeter , the area is —
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ব্যাখ্যা
This is Heron's formula, which gives the area purely from the three side lengths via the semi-perimeter . The area equals , the square root of the product of with each of its differences from a side.