Radius and Diameter Measurement

From the center of this CD to the edge of the CD is 4 inches. How far is the distance all the way across the CD?

• 16 in

• 8 in

• 12 in

• 2 in

Tags

CCSS.7.G.B.4

The radius of this coin is 7 mm. What is the diameter?

• 3.5 mm

• 14 mm

• 21 mm

• 49 mm

Tags

CCSS.7.G.B.4

A straight line segment that passes through the center of a circle and whose endpoints lie on the circumference of the circle is called the ____.

• Diameter

• Radius

• Circumference

• Area

Tags

CCSS.HSG.C.A.2

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

• Radius

• Diameter

The diameter is...

• twice the radius

• half the radius

• 4 times the radius

• the radius squared

Tags

CCSS.HSG.C.A.2

Find the diameter!

• A. 18 km

• b. 4.5 m

• C. 18 m

• D. 27 m

Tags

CCSS.7.G.B.4

If I want to cut this pizza in half, the line would be 16 in long. How far do I need to cut if I just want a slice from the center?

• 32 in

• 4 in

• 12 in

• 8 in

Tags

CCSS.7.G.B.4

a straight line from the center to the circumference of a circle or space

• Diameter

• Chord

• Radius

• Tangent

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

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

• Radius

• Diameter