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Can someone help me solve the area of this triangle?

1 Answer

Mar 1, 2018

$\approx 33.7 k m & 2$ $approx33.7km&2$

Explanation:

Given two sides of a triangle, $a, b,$ $a, b,$ and an angle, $C,$ $C,$ which lies between sides $a$ $a$ and $b$ $b$ we can calculate the area by

$\frac{1}{2} (a b) sin (C)$ $1/2(ab)sin(C)$

Here, we see $a=10.3km, b=12km, C=147°$

So, the area is

$1/2(10.3km*12km)sin(147°)approx33.7 km^2$

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