Solve the Problem $\sqrt{252} \mathrm{ft} \approx 15.9 \mathrm{ft}$ B) $\sqrt{252} \mathrm{ft}=126 \mathrm{ft}$

Solve the problem. Give an exact answer and an approximation to the nearest tenth.
-A painter leans a ladder against one wall of a house. At what height does the ladder touch the wall?

A) $\sqrt{252} \mathrm{ft} \approx 15.9 \mathrm{ft}$
B) $\sqrt{252} \mathrm{ft}=126 \mathrm{ft}$
C) $\sqrt{6} \mathrm{ft} \approx 2.4 \mathrm{ft}$
D) $\sqrt{900} \mathrm{ft} \approx 30.0 \mathrm{ft}$