Question

The area of the entire circle is 314 inches

What fraction of the 314 square inches is shaded
There is a circle with a shaded area of 90degrees

Answer 1

90 degrees is 1/4 of the circle ( 90 * 4 = 360 degrees = full circle).

Divide the area of the circle by 4:

314 / 4 = 78.5 square inches is shaded.