Radius and Diameter

What is radius?

• a straight line going from the center point of a circle to the outer edge

• Diameter is a straight line going from the outer edge of a circle to the other outer edge

• the line that goes complete around the outside of a circle

• radius is the area inside a circle

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What is diameter?

• a straight line going from the center point of a circle to the outer edge

• a straight line going from the outer edge of a circle to the other outer edge

• a curved line that goes complete around the outside of a circle

• the area inside a circle

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

Draw a circle with a radius of 2.4 cm. What is the diameter?

• 2.4 cm

• 4.8 cm

• 5.76 CM

Tags

CCSS.7.G.B.4

Find the radius of a circle who's diameter is 40 ft.

• 40ft
• 80ft
• 20ft
• 45ft

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18
• 10
• 9
• 8

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 3.5
• 3
• 5
• 7

Tags

CCSS.7.G.B.4

A circle has a diameter of 156 inches. What is the radius?

• 78

• 312

• 156

• 90

Tags

CCSS.7.G.B.4

A circle has a radius of 19.54 yards. What is the diameter?

• 19.54

• 39.08

• 20.07

• 19.70

Tags

CCSS.7.G.B.4