Can somebody help me? (* i will identify my problems with "hawaii" from now on so I can return to them easier in the future)
In the triangle with a height of 5.5 inches, the top RHS angle will be:
Sin(Top RHS) =5.5 / 11 =1 / 2
Top RHS angle = arcsin(1/2) = 30 degrees.
In the triangle with height h, the top angle is complementary =90 - 30 = 60 degrees.
So, this triangle is: 30, 60, 90 triangle.
Sin(30) = h / 9.9
1 / 2 = h / 9.9
h =9.9 x 1/2
h =4.95 inches.