the arc length is calculated by the formula
then
or it can be calculated using the circumference of the circle since we have a semicircle the circumference 2πr must be divided by 2 С=2πr:2=πr =8π=<u>25,12</u>
Add the who numbers: 4 + 2 = 6
You are correct, it's C. 6
Ertex angle:: x degrees
<span>base angle: x+15
</span>
Answer:
use your head
Step-by-step explanation: