Find the measure of the arc or angle indicated

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse