MATHEMATICS 5-Q3-MODULE 8-FINDING-CIRCUMFERENCE-OF-A-CIRCLE

What does "circumference" mean?

• Space a circle takes up

• Line from one side of a circle to another

• Distance around a circle

• Line from center of circle to side

A line segment from the center to the circumference of a circle is known as _________.

• Diameter

• Radius

• Area

• Midpoint

In terms of radius, a diameter is equals to ___________.

• 2 + r

• r
  2

• 2r

• 2
  r

Circumference of the circle is calculated by ___________.

• 2πr

• πr
  2

• 2π
  r

• πr

Emily purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?

• 28 cm

• 87.96 cm

• 43.96 cm

• 7 cm

Find the circumference of a circle with a diameter of 11 millimeters.

• 34.6 mm

• 30 mm

• 25.3 mm

• 34.54 cm

A circle has diameter 22 cm. What is the radius?

• 22 cm

• 88 cm

• 44 cm

• 11 cm

A circle has radius 29.5 cm. What is the diameter?

• 59 cm

• 88.5 cm

• 9.8 cm

• 14.75 cm

A circle has a circumference of 32.4 mm. Find the radius and the diameter. Round off your answers to two decimal places.

• 5.96 mm; 10.81 mm

• 10.32 mm; 5.16 mm

• 5.16 mm; 2.58 mm

• 58 mm; 5.16 mm

Calculate the circumference of this circle. Round off your answer to one decimal place.

• 50.2 m

• 201.1 m

• 100.5 m

• 25.1 m