Area of Circle, Parallelogram, Circumference of Circle

What is the area for this parallelogram?

What is the area for this circle?

What is the perimeter (circumference) of this circle?

• 18.84ft

• 37.68ft

• 452.16ft

• 113.04ft

How do you find the area of a circle?

• length x width

• add up all the side lengths

Find the area of the circle

• 56.52

• 254.34

• 1017.36

• 113.04

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

What is the Area Formula for a Circle?

• A = $\pi$ * r * r

• A = $\pi$ * d

• A = 2 * $\pi$ * r

A dog is tied to a wooden stake in a backyard. His leash is 3 meters long and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?

• 113.04 square meters

• 9.42 square meters

• 18.84 square meters

• 28.26 square meters

How do you find the perimeter (circumference) of a circle?

• length x width