Semicircle area?
1 Answer
The area of the shaded section is
Explanation:
To calculate the area of the shaded area, we calculate the difference between the area of the semicircle and the area of the circle.
The formula for area of the semicircle is:
The formula for area of the circle is:
Hence, to calculate the difference between the two, we write:
We consider the value of
Since the given diameter is in millimetres, the area will be expressed as square millimetres or