area and circumference of a circle

What does the red line represent?

• The circumference of the circle

• The diameter of the circle

• The radius of the circle

The diameter of a circle is 10 in.

What is its radius?

• 20 in.

• 5 in.

Tags

CCSS.7.G.B.4

Does this circle show the radius or diameter?

• radius

• diameter

What is the radius of this circle?

• 40 cm

• 20 cm

• 10 cm

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4

The diameter of a circle is 10 inches. What is the radius?

• 10 inces

• 20 inches

• 5 inches

• 2.5 inches

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a diameter of 56 m?

• 175.8 m
• 176.8 m
• 165.8 m
• 186.8 m

Tags

CCSS.7.G.B.4

The circumference of a circle is

• The measurement from an edge of a circle to another edge.
• The measurement around the circle
• The measurement from an edge of a circle to another edge going through the center
• The measurement from the center of the circle to an edge of the circle

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius