Question #241406

A point source of light is 6 ft. from the center of a sphere with a radius of 3 ft. Find surface area that is brightened.

Expert's answer

"S.A=4\u03c0r^2\\\\\n3^2=9\\\\\n=4\\cdot \\:9\\pi \\\\\n=36\\pi"

Learn more about our help with Assignments: Engineering

## Comments

## Leave a comment