Need Help, I got two sides and the area in a triangel .. Would be happy for any help!

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December 10th 2011, 06:31 AM
Aiyla

Need Help, I got two sides and the area in a triangel .. Would be happy for any help!

One side is 6 cm the other is 11 cm

A=23 cm ^2

a) Solve the Angle between the sides

b) Solve the rest angles and sides
December 10th 2011, 06:44 AM
sbhatnagar

Re: Need Help, I got two sides and the area in a triangel .. Would be happy for any h

$b=6$ and $c=11$ .
$A$ is the angle between b and c.
$\Delta$ is the area of the triangle.

$\Delta=\frac{1}{2}bc\cdot \sin{A}$

$23=\frac{1}{2}\times 6\times 11\times \sin{A}$

Solve for A

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