Radius and Diameter Word Problems

If the word problem is asking you to find the space inside the circle, which formula should you use?

• r = d/2

• d = 2r

• C = πd

• A = πr²

Tags

CCSS.7.G.B.4

Which formula would you use to answer: Lauren's bicycle tire has a diameter of 20 inches. How many inches is one full revolution of the wheel?

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 13

• 26

• 6.5

• 7

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 6

• 4

• 3

• 0

what is the diameter of this circle?

• 10

• 5

• 20

• 50

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 20

• 5

• 10

• 40

Tags

CCSS.7.G.B.4

The diameter is...

• twice the radius

• half the radius

• 4 times the radius

• the radius squared

Tags

CCSS.HSG.C.A.2

The radius is 4. What is the diameter?

• 2

• 6

• 8

Tags

CCSS.7.G.B.4

The diameter is 6. What is the radius?

• 12

• 3

• 36

Tags

CCSS.7.G.B.4

What is shown here

• Diameter

• Radius

• Triangle