Radius and Diameter

The diameter of a circle is:

• The measurement around the circle.

• The distance from an edge of a circle to another edge.

• The distance from the center of the circle to an edge of a circle

• The distance from an edge of a circle to another edge through the center. 

What is the Diameter?

• 8 in

• 16 in

• 32 in

What is the diameter of the circle?

• 2 yd

• 4 yd

• 8 yd

• 16 yd

What is the radius of the circle?

• 16 in

• 32 in

• 8 in

• 4 in

Is this a radius or diameter?

• Radius

• Diameter

What is the radius of the circle?

• 10 km

• 5 km

• 20 km

• 2.5 km

Is this a radius or diameter?

• Radius

• Diameter

Is this a radius or diameter?

• Radius

• Diameter

What is the diameter?

• 21.60 km

• 5.4 km

• 10.8 km

• 2.7 km

What is the radius?

• 21.60 km

• 5.4 km

• 10.8 km

• 2.7 km