Finding the Radius and Diameter of a Circle

The ______ is the distance across the circle from one side to the other through the center of the circle.

• Circumference

• Diameter

• Radius

Tags

CCSS.HSG.C.A.2

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

• Circumference

• Diameter

• Radius

The formula used to find the diameter when given a radius measurement is

Tags

CCSS.7.G.B.4

The formula used to find the radius when given a diameter measurement is

Tags

CCSS.7.G.B.4

what is the formula for finding radius (a)  

• c = π d

• c = 2 π r

• d = r/2

• r = d/2

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18 in

• 10 in

• 9 in

• 8 in

Tags

CCSS.7.G.B.4

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18

• 10

• 9

• 8

Tags

CCSS.7.G.B.4

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

Tags

CCSS.4.MD.A.2

A line that goes from the center to outwards is called...

• Diameter

• Circumference

• Radius

• Say what???