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The doorstop factory is making triangle shaped doorstops. You come up with a new idea for a doorstop that will work much better than the current one. Previously, the doorstops were 5 inches wide by 2.88 inches tall. Your new doorstop idea is 7 inches wide by 3 inches tall. You think that since it is longer it will stop the door better. Your manager thinks this is a great idea, and asks for the angle of elevation. Find the measure of Angle A in your new doorstop plan.
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Input angle A's measure below.
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Use a triganomic ratio to figure out the measure of angle A.
Use Inverse Tangent on the legs of the triangle to find the measure of angle A
The measure of angle A is the Inverse Tangent (Tan^-1) of 3/7.