A long ramp that leads to a building entrance is 45 feet. The stairs to the entrance have a vertical height of 6 feet. What is t
he angle of incline of the ramp?
1 answer:
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Use the geometric mean for right triangles here. Like this 
. Cross multiply to get 
, and 
. That simplifies down to 
. Pull out the 9 as a perfect square of 3 and you're left with 
, first choice above.
Answer:
18
Step-by-step explanation:
÷
Keep Change Flip
×
=