Answer:
1. 11cm
2. 31.2cm
3. 20m
4. 11cm
5. 314feet
Explanation:
1. 5.5 × 2 = 11cm
2. 15.6 × 2 = 31.2cm
3. 40m ÷ 2 = 20m
4. From the centre of a circle to the edge is the radius of a circle.
5. Circumference = πD
D = 2r = 2 × 50 = 100
π × 100 = 314feet