Circles Perimeter and Radius

If the diameter this pizza is 14 inches, what is the approximate area? Round to the nearest tenth.

• 153.9 square inches

• 153.8 square inches

• 615.4 square inches

• 615.5 square inches

Tags

CCSS.7.G.B.4

What is the circumference?

• 50.24

• 96

• 24

• 18

Tags

CCSS.7.G.B.4

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in 

Tags

CCSS.7.G.B.4

What is the formulas for circumference of a circle? (Select Two.)

• C = pi x r

• C = pi x 2r

• C = pi x D

• C = pi x 2D

Tags

CCSS.7.G.B.4

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

Wrapping ribbon around a vase.

• Area

• Circumference

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

• radius

• diameter

• circumference

• area

Tags

CCSS.7.G.B.4

A segment that has one endpoint at the center and the other endpoint on the circle is the __________.

• diameter

• chord

• radius

• secant

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Tags

CCSS.HSG.C.A.2