SOLUTION: In a parking garage,there are 20 feet between each level. Each ramp to a level is 130 feet long. Find the measure of the angle of elevation of each ramp.

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Question 64553This question is from textbook ALgebra 1
: In a parking garage,there are 20 feet between each level. Each ramp to a level is 130 feet long. Find the measure of the angle of elevation of each ramp. This question is from textbook ALgebra 1

Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
Firstly draw a diagram showing a triangle with the required angle, a hypotenuse of 130 ft and an opposite side of 20 ft.
The sine of the angle required uses the formula Opposite/Hypotenuse.
sin%28angle%29=Opp%2FHyp
sin%28angle%29=20%2F130
Sin(angle)=0.1538
Angle=arcsine(0.1538)
Angle is 8.85 degrees