Answer:
47.5
Explanation:
We know that a semicircle is half the area of a circle so to answer this question we can simply find the area of a circle with a diameter of 11cm and then half it!
The area of a circle can be found using the equation: πr²
The radius of the circle would be 5.5cm as we have to be half the diameter.
This means to work it out we would be doing...
Now we have to half it...
- 95.0331777711 ÷ 2 = 47.5165888855 or 47.5 rounded to 1d.p
Hope this helps, have a lovely day! :)