SOLUTION: Please help me answer this question on triangles: The entrance of the old town library is 2.3 ft above ground level. A ramp from the ground level to the library entrance is sche

Algebra ->  Triangles -> SOLUTION: Please help me answer this question on triangles: The entrance of the old town library is 2.3 ft above ground level. A ramp from the ground level to the library entrance is sche      Log On


   

Question 1073040: Please help me answer this question on triangles:
The entrance of the old town library is 2.3 ft above ground level. A ramp from the ground level to the library entrance is scheduled to be built. The angle of elevation from the base of the ramp to its top is to be 15 degrees. Find the length of the ramp.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The entrance of the old town library is 2.3 ft above ground level. A ramp from the ground level to the library entrance is scheduled to be built. The angle of elevation from the base of the ramp to its top is to be 15 degrees. Find the length of the ramp.
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It's a right triangle.
The sine of the angle = 2.3/length
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That's a steep ramp. People in wheelchairs will have to hit it with some speed to make it up.
Coming down will be fun, tho.