Circles

What is the diameter of a circle?

• Goes through the center touchimg each side of the circle

• Goes from the center of the circle to one point on the circle

• Connects two points on the circle without going through the center of the circle

• none of these

What is the radius of a circle?

• A line that goes through the center of the circle and touches each side of the circle.

• A line that goes from the center of the circle to one point on the circle.

• A line that connects two points on the circle, but does not go through the middle.

• None of these.

What is the formula for circumference of a circle?

• Circumference = diameter x radius

• Circumference = 3.14 x radius

• Circumference = 3.14 x diameter

• Circumference = 3.14 x diameter squared

What is the formula for area of a circle?

• Area = radius x diameter

• Area = 3.14 x radius squared

• Area = 3.14 x diameter squared

What is the value of Pi?

• 31.4

• 314

• .314

• 3.14

If the diameter of the circle is 10, what is the radius?

• 20

• 10

• 5

• 0

If the radius of the circle is 12, what is the diameter?

• 6

• 3

• 24

Find the circumference of a circle that has a diameter of 5.

• 31.4

• 7.85

• 150.7

• 15.7

Find the circumference of a circle with the radius of 10.

• 15.7

• 62.8

• 150.7

• 628

Find the area of a circle that has a radius of 5.

• 15.7

• 78.5

• 31.4