Take a base line of length 10cm.Draw two half circles representing ifentical wavy waves. What will be the radius of each half circle.
Here is how you should approach this question:
- You have a straight line of 10cm.
- You want to fit two half-circles on that line.
- That means each half circle will take up 5 cm (because 10 ÷ 2 = 5).
- We know that the radius of a circle is half of its diameter. So radius = diameter/2
- Therefore, each half circle will have a radius of 2.5 cm.




