A 17ft ladder leans against the side of a house. The top of the ladder is 15 ft off the ground. Find x, the angle of elevation of the ladder. Round your answer to the nearest tenth of a degree

SOHCAHTOA.

We are to use SOH in this question because we have the opposite which is 15 and the hypotenuse which is 17.

which will be Sin theta =15/17.

Sin theta =0.8823~1.

then Sin theta =1.

which is theta = (inverse of sin) sin^-1(1).

theta =90°.

∠cbe and ∠deb are same-side interior angles.

i took the test

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.