Question

Using heron formula to find area and height of an equilateral triangle of side 80 cm

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Answer 1

Answer:

Answer for the problem is given.

Step-by-step explanation:

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Answer 2

Answer:

$s = \: \frac{80 + 80 + 80 }{2}$

$= \frac{240}{2}$

$= 120$

Heron Formula

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

$\sqrt{120(120 - 80)(120 - 80)(120 - 80)}$

${ \sqrt{120 \times 40 \times 40 \times 40 \times } }$

$\sqrt{12 \times {4}^{3} \times 10000 }$

$\sqrt{12 \times 64 \times 10000}$

$\sqrt{768 \times 10000}$

$\sqrt{7680000}$

$2,771.28129cm$