Question

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Answer 1

Answer:

In geometry, Heron's formula named after Hero of Alexandria,gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

Formula = √s (s-a × s-b × s-c)

S = semiperimeter

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Answer 2

Answer:

Refer to the attachment above