Radius and Diameter

The radius is:

• The point from which all points on a circle are the same distance

• The distance across a circle through its center

• The distance from the center of a circle to any point on the circle.

• A portion of the circumference of a circle

Answer explanation

Radius is from the center of the circle to a point on the circle

The diameter is:

• The point from which all points on a circle are the same distance

• The distance across a circle through its center

• The distance from the center of a circle to any point on the circle.

• A portion of the circumference of a circle

Answer explanation

Diameter goes across the circle through the center

Tags

CCSS.HSG.C.A.2

The image is showing what part of the circle?

• Radius

• Diameter

• Center

• Arc

Answer explanation

The radius goes from the center of the circle to a point on the circle

The image is showing what part of the circle?

• Radius

• Diameter

• Center

• Arc

Answer explanation

Diameter goes through the center of the circle

If I am given the radius, how do I find the diameter?

• Add 2 to the radius

• Square the radius

• Divide the radius by 2

• Multiply the radius by 2

Answer explanation

You double the radius to get the diameter

Tags

CCSS.7.G.B.4

If I am given the diameter, how do I find the radius?

• Add 2 to the diameter

• Square the diameter

• Divide the diameter by 2

• Multiply the diameter by 2

Answer explanation

You divide the diameter by 2 to get the radius

Tags

CCSS.7.G.B.4

Given a radius of 6, what is the diameter?

• 3

• 12

• 36

• 8

Answer explanation

You double the radius to get the diameter

Tags

CCSS.7.G.B.4

Given a diameter of 24, what is the radius?

• 48

• 26

• 12

• 14

Answer explanation

You divide the diameter by 2 to get the radius

Tags

CCSS.7.G.B.4

Given a radius of 3.5, what is the diameter?

• 7

• 5

• 1.75

• 6

Answer explanation

You double the radius to get the diameter

Tags

CCSS.7.G.B.4

Given a diameter of 15, what is the radius?

• 30

• 7.5

• 17

• 10

Answer explanation

You divide the diameter by 2 to get the radius

Tags

CCSS.7.G.B.4