Area of Circles

Jolie has a circular bedroom. She would like to add new flooring to it. If a straight line from the center of her room to the edge of it is 12 inches, what would the area of her room be?

• 452.16 inches

• 452.16 inches squared

• 37.68 inches squared

• 45216

What is the diameter of a circle?

• Half of the circumference

• The mass a circle takes up

• The distance between one edge of a circle to to another edge of the circle, passing through the center.

• This distance between one edge of the circle to the center of the circle.

What is the area of a circle?

• The space that a circle takes up

• All the space outside of a circle

• The area within a circle

• The outer border of a circle

What is the formula for the area of a circle when you know the radius?

• π²

• d²π

• (r/2)²π

• πr²

What is the formula for the area of a circle when you only know the diameter?

• diameter x 2 x pi

• diameter x pi

• diameter divided by 2 to the power of 2 times pi

• diameter x pi x pi

What is the area of this circle? Use 3.14 for π. Round to the nearest hundredth place.

• 16.328 cm squared

• 8.164 cm

• 21.23 cm squared

Find the area of this circle? Use 3.14 for π.

• 125.6 cm squared

• 1256 cm squared

• 1256

• 12.56 cm

Find the area of this circle. Use 3.14 for π. Make sure to add units. (don't add exponents)

What is the area of this circle? Use 3.14 for π. Make sure to include units. (no exponents)

What is the area of this circle? Use 3.14 for π.

• 28.26

• 18.84

• 9.42

• 1884