Circumference Find the Diameter

In Circle F, line segment FH is 5 ft. Using this information, what is the best estimate of the circumference of Circle F?

• 15 feet

• 18 feet

• 32 feet

• 34 feet

Tags

CCSS.7.G.B.4

Arthur ran around a circular field. What do you need to find in order to know how far Arthur ran around the circular field?

• area

• circumference

• diameter

• radius

What is the circumference of this circle?

• 18.84

• 21.12

• 37.68

• 47.10

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 25.12

• 47.10

• 40.82

• 31.40

Tags

CCSS.7.G.B.4

What is the circumference of a pizza with a 10-inch diameter?

• 31.40

• 28.26

• 25.12

• 18.86

Tags

CCSS.7.G.B.4

In words, describe this formula

• The area of a circle is equal to pi times the radius squared

• The circumference of a circle is equal to the pi times the diameter.

• The circumference of a circle is equal to pi times the radius squared

• The area of a circle is equal to pi times the diameter

Tags

CCSS.7.G.B.4

Find Circumference.

• 87.92 cm

• 43.96 cm

• 21.98 cm

• 3.14 cm

Tags

CCSS.7.G.B.4

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

• 62.8ft

Tags

CCSS.7.G.B.4

What is the diameter?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

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