Circumference

Front

What does C represent in the formula C = π·d?

Back

Circumference

Front

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

Back

C = π·d or C = 2·π·r

Front

What does 'circumference' mean?

Back

Distance around a circle

Front

If the radius of a circle is 9 cm, what is the diameter?

Back

18 cm

Front

What is the value of π (Pi) approximately?

Back

3.14

Front

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

Back

C = 2·π·r

Front

What is the circumference of a circle with a diameter of 10 cm?

Back

31.4 cm

Front

If a circle has a circumference of 37.7 cm, what is its diameter?

Back

12 cm (using C = π·d)

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × Radius

Front

What is the circumference of a circle with a radius of 5 cm?

Back

31.4 cm