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First find the are of the 90 degree triangular end. This is 0.5ab where a and b are the two legs of the triangle adjacent to the right angle. Multiply the result by the length of the wedge.
How to calculate 90 degree and 40 degree elbow center >For 90 degree elbow(Dia*38.1) this formula used for only 90 degree elbow. >For 45 degree elbow(45/2of tan*Dia*1.5*25.4) this answer obtained in (mm).
A 90 degree angle
Subtract 90 - 46.
It is: 73+17 = 90 degrees
to find the complement, subtract 23 from 90. so the answer is 67 degrees