What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?
use 3.14 for it and round your final answer to the nearest hundredth.

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

i think is g(1)=-1.

hope that i can