Circle Practice

Which part of the circle is marked in red?

• Radius

• Diameter

• Circumference

• Center

Which part of the circle is marked in red?

• Radius

• Diameter

• Circumference

• Center

Which part of the circle is marked in blue?

• Circumference

• Diameter

• Radius

• Center

The point O shows the...

• Radius

• Diameter

• Center

• Circumference

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.

• the measurement around a circle.

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. 

Tags

CCSS.HSG.C.A.2

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

Tags

CCSS.7.G.B.4

What is the radius of the circle?

Mathematical Equivalence

ON

Answer explanation

The radius is always half of the diameter.

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

Mathematical Equivalence

ON

Answer explanation

The diameter is always double the radius.

Tags

CCSS.7.G.B.4

Pi is the constant of proportionality relating which two parts of a circle?

• Radius and Diameter

• Radius and Circumference

• Diameter and Circumference

• Area and Circumference

Answer explanation

$C=\pi\cdot d$

Tags

CCSS.7.G.B.4