Note:

Use Circles – The basics FSQ1-4.

Q5

The circumference of the circle below is 47.1 cm.

Work out the value of the radius, using \pi = 3.14.

Answer: 7.5 cm.

Wrong Answer:

15 cm

30 cm

3.75 cm

WORKING:

47.1\div3.14=15 cm = diameter.

15\div2=7.5 cm.