Use 3.14 for PI( π )

Diameter: 5 ft
Formula: A= πr2

Step-by-step explanation:

The area of a circle is found using this formula:

We know the circle's diameter is 5 feet, but we don't know the radius. Remember the diameter passes through the center from one side to the other, while the radius connects the center and the side. Therefore, the radius is half the diameter.

We know the radius is 2.5 feet and we are using 3.14 for pi. Substitute the values into the formula.

Solve the exponent.

Multiply.

The area of the circle is 19.625 square feet.

the answer is b

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: