Answer
$326.7$ square feet
Work Step by Step
The radius of the circle or sector is equal to: $r=\dfrac{diameter}{2}=12$
A sector with a central angle measure of $100^o$ was removed; therefore, the angle surrounded by the tent becomes:
$360^{\circ}-100^{\circ}=260^{\circ}$
The area of sector $K_{s}$ can be determined by the formula:
$K_{s}=\dfrac{\theta}{360}\cdot \pi \cdot r^2$, where $\theta$ is in degrees
So, $K_{s}=\dfrac{260}{360} ( \pi)(12^2) \approx 326.7$ square feet
