## Precalculus (6th Edition)

The area is $750 \pi$ square units.
The area of a sector is $A = 0.5 \times R^2 \times a$ where R is the radius, and a is the central angle in radians. lets use the equation: $A = 0.5 \times 10^2 \times 15 \pi = 750 \pi$