Question

Find th e area of triagle in which . a=13m,b=14,c=15m

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Question

Find the area of triangle in which . a=13m,b=14m, c=15m.

Answer
${84m}^{2}$
$= \frac{a + b + c}{2} \\ \\ s = \frac{13 + 14 + 15}{2} \\ \\ s = \frac{42}{2} \\ \\ s = 21m$

Note
where a,b,and C are the sides of the given triangle and s is its Semi - perimeter (s),

Here we using Heron's Formula

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

$\sqrt{21(21 - 13)(21 - 14)(21 - 15)} \\ \\ \sqrt{21(8)(7)(6)} \\ \\ \sqrt{7056} \\ \\ \sqrt{84 \times 84} \\ \\ {84m}^{2}$
Therefore the area of triangle is ${84m}^{2} .$

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