Asked by jess

The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.
Answered by Reiny
area of triangle = a*b*sinØ
75 = (12)(15)sinØ
sinØ = .416666...
Ø = 24.6° or 155.4° (the sine is positive in 1st or 2nd quadrant)
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