Area, Radius and Diameter of a Circle

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

• Radius

• Diameter

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

Find the radius of a circle who's diameter is 40 ft.

• 40ft

• 80ft

• 20ft

• 45ft

Tags

CCSS.7.G.B.4

Which of the following is a radius of the circle?

• DA

• GE

• HI

• FG

If the diameter of a circle is 10 cm, the radius is 5 cm.

• TRUE

• FALSE

Tags

CCSS.7.G.B.4

The distance halfway across the circle is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.C.A.2

The distance from the center of the circle to any point on the circle is called the...

• radius

• diameter

• circumference

• area

The distance across the circle through the center is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.C.A.2

What is the diameter?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

Tags

CCSS.7.G.B.4

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Tags

CCSS.7.G.B.4