25.3 is what i got for the first image.
2(2x + 3) + 2(x=1)
if they give you x just sub in
Answer:
216 degrees
Step-by-step explanation:
step 1
Find the circumference of the circle
The circumference of the circle is equal to

we have

substitute


step 2
Find the measure of the arc if the length of the arc is 12π in
Remember that
The circumference of a circle subtends a central angle of 360 degrees
so
by proportion
