Circumference, Area

What is the correct formula for the Area of a Circle? 

• A= π x d

• A = π x d²

• A= π x r²

Find the area for a circle with a diameter of 8 feet. 

• 200.96 feet 

• 25.12 feet 

• 12.56 feet 

• 50.24 feet

Ms. Boyett wants to build a circular swimming pool with a fountain in the center. She wants the fountain to be 18.6 feet from the edge of the pool. What would the distance be around the outside of the pool? 

• 116.8 yards

• 58.4 feet

• 58.4 yards

• 116.8 feet

Find the area of the circle

• 56.52

• 254.34

• 1017.36

• 113.04

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

What is the radius?

• 18

• 72

• 38

• 14

What is the diameter?

• 8

• 16

• 10

• 4

What is the radius?

• 18

• 72

• 38

• 14

The perimeter of a circle is usually called the...

• radius

• diameter

• circumference

• area

The space contained inside of a circle is called the...

• radius

• diameter

• circumference

• area