Posted by Marco on Monday, February 14, 2011 at 9:44pm.
I'll find one side.
Triangle ABC,
angle A = 36
side c (hypotenuse) = 9
To find side a (opposite side)
sin A = op/hyp = a/c = a/9
sin 36 = a/9
0.5878 = a/9
9 * 0.5878 = a
a = 5.2902
Area = 1/2 bh
In this case, (right triangle)
A = 1/2 ab (side a, side b)
I found side a, you need to find side b.
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