Question

find area a triangle of side 8 cm, 7cm&5cm
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Answer 1

Answer:

Bhai use herons formula

Step-by-step explanation:

first find s(semiperimeter) then the area

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Answer 2

Answer:

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$s = \frac{8 + 7 + 5}{2}$

$= > s = \frac{20}{2}$

$= > 10$

$\: area \: of \:t he \: triangle \:$

$\sqrt{s(s - a)(s - b)(s - c)}$

$= \sqrt{10(10 - 8)(10 - 7)(10 - 5)}$

$= > \sqrt{10(2)(3)(5)}$

$= > \sqrt{10(30)}$

$= > \sqrt{300}$