circumference of a circle

If the circumference of a circle is 36π, what is the diameter?

• 24

• 30

• 36

• 42

What is the diameter of a circle?

• The distance around the circle.

• The distance across the circle through its center, equal to twice the radius.

• The distance from the center to the edge of the circle.

• The area of the circle divided by the radius.

What is the circumference of a circle?

• The circumference is the distance around the circle.

• The circumference is the area of the circle.

• The circumference is the diameter of the circle multiplied by pi.

• The circumference is the radius of the circle squared.

If a circle has a diameter of 20 cm, what is its radius?

• 5 cm

• 10 cm

• 15 cm

• 20 cm

What is the significance of the circumference in real-life applications?

• Circumference is important for measuring distances around circular objects, such as wheels, pipes, and bowls.

• Circumference is used to calculate the area of rectangular objects.

• Circumference helps in determining the volume of three-dimensional shapes.

• Circumference is primarily used in linear measurements of straight lines.

What does it mean when we say a circle has a circumference of 36π?

• It means the distance around the circle is 36 times the value of π.

• It means the area of the circle is 36π square units.

• It means the diameter of the circle is 36π units.

• It means the radius of the circle is 36π units.

If the radius of a circle is 5 cm, what is the diameter?

• 8 cm

• 10 cm

• 12 cm

• 6 cm

What is the formula to calculate the circumference of a circle?

• Circumference = π × diameter

• Circumference = 2 × π × radius

• Circumference = π × radius²

• Circumference = 2 × diameter

If the diameter of a circle is 14 cm, what is the circumference?

• 28 cm

• 43.98 cm

• 44 cm

• 42 cm

How do you find the circumference if you only know the radius?

• Circumference = π × radius

• Circumference = 2 × π × radius

• Circumference = π × radius²

• Circumference = 2 × radius