Worksheet on calculating the area and circumference of circles, including problems with full circles, fractions of circles, composite shapes, and missing lengths.

1. Find the area and circumference of these circles
a) Area: 28.27 cm², Circumference: 18.85 cm
b) Area: 153.94 cm², Circumference: 21.99 cm
c) Area: 12.57 cm², Circumference: 12.57 cm
d) Area: 78.54 cm², Circumference: 15.71 cm
e) Area: 7.07 cm², Circumference: 9.42 cm
f) Area: 3.14 cm², Circumference: 6.28 cm
g) Area: 132.73 cm², Circumference: 40.84 cm
h) Area: 63.62 cm², Circumference: 14.14 cm

2. Find the area and perimeter of these shapes made from fractions of circles.
a) Area: 39.27 cm², Perimeter: 25.71 cm
b) Area: 28.27 cm², Perimeter: 21.42 cm
c) Area: 58.90 cm², Perimeter: 25.71 cm
d) Area: 50.27 cm², Perimeter: 28.56 cm
e) Area: 9.42 cm², Perimeter: 10.28 cm
f) Area: 56.55 cm², Perimeter: 30.85 cm
g) Area: 23.76 cm², Perimeter: 19.71 cm
h) Area: 19.63 cm², Perimeter: 13.71 cm

3. Work out the area of these shapes made from circles and rectangles.
a) Area: 38.57 cm²
b) Area: 30.13 cm²
c) Area: 37.14 cm²
d) Area: 30.28 cm²

4. Find the missing lengths in these circles
a) Radius: 5.64 cm
b) Diameter: 100.00 cm
c) Radius: 4.18 cm
d) Diameter: 3.82 cm