# SAS triangle

The triangle has two sides long 7 and 19 and included angle 36°.

Calculate area of this triangle.

Correct result:

S =  34.4

#### Solution:

$S=\frac{1}{2}ah=\frac{1}{2}ab\mathrm{sin}\gamma =\frac{1}{2}13\cdot 9\cdot \mathrm{sin}3{6}^{\circ }=34.4$

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