
so.. to get every angle, simply plug in 10 for "x" for each.
Answer:
The simplified expression is:

Step-by-step explanation:
We want to simplify:

We factor the numerator and the denominator to get:

Cancel out u-2 which is common to the numerator and the denominator yo get:

The length of that semi circle is 6pi. So the perimeter should be 6pi + 24