Question

amy is making donuts as shown below the donut has a diameter of 5 inches and the center has a radius of 1 inch . what is the approximate area of the dunut? use 3. 14 for n

Answer 1

The area of the dount is about 35.325 in²

Explanation:

In order to find the area of a donut with a hole on the center we need to find the area of the center and the area of the circle of the donut (as if the donut was whole)

*The radius is half of the diameter or r = d/2

The area of a circle is A = n(3.14) r² or pi(3.14)× radius

1. Find the area for the center of the donut which is 3.14 × 1² which is 3.14 in²
2. Find the area of the circle of the donut which is 3.14 × (5/2)*² the answer would be 38.465
3. Subtract the empty space from the rest of the donut so 38.465 - 3.14. The final answer is 35.325 in²