Solve the Problem $20 \mathrm{ft}$ By $13 \mathrm{ft}$ a Triangular Area with a Height Of Is

Multiple Choice

Solve the problem.
-A rectangular piece of fabric is $20 \mathrm{ft}$ by $13 \mathrm{ft}$ . A triangular area with a height of $4.9 \mathrm{ft}$ and a base of $7.3 \mathrm{ft}$ is cut from the fabric. How much area is left over?

A) $307.45 \mathrm{ft}^{2}$
B) $242.115 \mathrm{ft}^{2}$
C) $448.46 \mathrm{ft}^{2}$
D) $224.23 \mathrm{ft}^{2}$