Finding Radius or Diameter Given Circumference or Area

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 12cm

• 6cm

• 24cm

• 3cm

Tags

CCSS.7.G.B.4

A circle has a radius of 23 feet. What is the diameter of the circle?

• 23 feet

• 46 feet

• 1/2 feet

• none of the above

Tags

CCSS.7.G.B.4

What does r represent in the formula:

A = π·r²

• circumference

• radius

• diameter

• squared

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18

• 36

• 9

• 8

Tags

CCSS.7.G.B.4

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

Tags

CCSS.5.MD.A.1

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2

• Divide the diameter by 2

• Add 2 to the diameter

• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

Brian made a tasty burger. The diameter of the
burger was 5 cm. What is the radius of the circle?

• 15.7 cm

• 10 cm

• 2.5 cm

• 31.4 cm

Tags

CCSS.7.G.B.4

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

Tags

CCSS.7.G.B.4