Question

Question 11(Multiple Choice Worth 1 points) (07.01 MC) The picture shows a barn door: A barn door has two parallel bars, each of length 4 feet. A support AB runs across the diagonal between the two parallel bars. The angle made by the diagonal with the parallel bar on top is 45 degrees.

Answer 1

Hypotenuse= 9/sin 60=10.39 ft.
the length of the support AB is 10.39 ft.

Answer 2

The answer is 7/sin45 degrees

Explanation:

I took the test and got it right.

The options were:

A.) 7/cos 45-degrees

B.) 7 tan 45-degrees

C.) 7/sin 45-degrees

D.) 7 cos 45-degrees

C will be your answer :)