Circumference & Area of Circles (Year 9)
Free printable UK Year 9 (Key Stage 3) maths worksheet: find the circumference and area of circles from a radius or diameter, in terms of pi and as a rounded decimal.
✓ Answer key checked by math, never wrong
Grade 8 · Math worksheet
Name
Date
Math
Circumference & Area of Circles
Find the circumference or area of each circle, giving your answer exactly in terms of pi and rounded to 1 decimal place.
- 1.A circle has a radius of 4 cm. Find its circumference, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 2.A circle has a radius of 10 cm. Find its circumference, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 3.A circle has a radius of 5 cm. Find its circumference, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 4.A circle has a radius of 14 cm. Find its area, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 5.A circle has a radius of 11 cm. Find its area, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 6.A circle has a radius of 12 cm. Find its area, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 7.A circle has a diameter of 16 cm. Find its circumference, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 8.A circle has a diameter of 30 cm. Find its circumference, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 9.A circle has a diameter of 26 cm. Find its area, (a) in terms of pi, and (b) rounded to 1 decimal place.
- 10.A circle has a diameter of 14 cm. Find its area, (a) in terms of pi, and (b) rounded to 1 decimal place.
Made with ChalkBee · chalkbee.com