Answer:

Step-by-step explanation:
step 1
Find the area of the circle
The area of the circle is

we have
----> the radius is half the diameter
substitute


step 2
Find the area of a sector
Remember that
The area of the circle subtends a central angle of 360 degrees
so
using proportion
Find out the area of a sector with a central angle of 108 degrees

assume

substitute

Answer:
58 degrees
Step-by-step explanation:
subtract 122 from 180
Answer:
#3
Step-by-step explanation:
Answer:
Step-by-step explanation:
hello mother 60-46=59+89=30000
They are similar, but I don't exactly know why. It has something to do with the angles, I know that.