Question

The side of a triangular park are 14 m, 17 m and 20 m. Find it's area

Answer 1

Answer:

140m

Step-by-step explanation:

Answer 2

A=117.09m²

a side 14m

b side 17m

c side 20 m

$\tt \color{green}A = \sqrt{s( - a)(s - b)(s - c)}$

$\tt \color{red}S = \frac{a + b + c}{2}$

Solving for A

$\tt \color{blue}A = \frac{1}{4} \sqrt{-a⁴+2(ab)²+2(ac)²-b⁴+2(bc)²-c4}$

$\tt \color{magenta} = \frac{1}{4} . \sqrt{-14⁴+2.(14.17)²+2.(14.20)²-17⁴+2.(17.20)²-20⁴}$

$\huge\tt \color{purple} ≈117.08731m²$

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