Find the Area of a Circle from the Circumference

What is the circumference of the circular mirror mentioned in the problem?

• 15 pi inches

• 45 pi inches

• 30 pi inches

• 60 pi inches

Which formula is used to calculate the area of a circle?

• Area = 2 * pi * r

• Area = pi * r^2

• Area = pi * d

• Area = r^2 / pi

How do you find the radius from the circumference of a circle?

• Divide the circumference by 2 * pi

• Divide the circumference by pi

• Multiply the circumference by pi

• Multiply the circumference by 2

What is the radius of the mirror if its circumference is 30 pi inches?

• 15 inches

• 10 inches

• 25 inches

• 20 inches

What is the area of the mirror in terms of pi?

• 150 pi

• 200 pi

• 225 pi

• 250 pi