(Solved): A 24-ft ladder is leaning against a building. If the base of the ladder is 9ft from the base of the ...

A 24-ft ladder is leaning against a building. If the base of the ladder is $9\mathrm{ft}$ from the base of the building, what is the angle of elevation of the ladder? (Round your answer to one decimal place.) How high does the ladder reach on the building? (Round your answer to the nearest whole number.) $\mathrm{ft}$