



 
Hi Steve. Is the length of 12 feet the horizontal length along the ground or the length of the ramp itself? Assuming it is the length of the ramp itself, then the height would be 4.689 feet. This is because the ramp is the hypotenuse in a rightangled triangle so the height h, the ramp length r, and the angle A are related by the equation h = r sin A. Since r is 12 and A is 23 degrees, h = 12 sin(23) = 4.689 feet. That's about 4 foot, 8.25 inches. Cheers, PS: If it is 12' along the ground rather than the ramp, then h = 12 tan (23) instead.  


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