 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Rebecca, a student: how do you find the area of a semi circle and then how do you add the area of a semi circle and the area of a rectangle? |
Hi Rebecca,
The area of a circle is $\pi$ times the diameter where $\pi$ is approximately 3.1416. A semicircle is half a circle so the area of a semicircle is $\large \frac12 \times \pi$ times the diameter.
The two areas, that of the semicircle and the rectangle, are numbers so to add the areas just add the numbers.
I hope this helps,
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.