a circular pizza is cut along four diameters into eight identical sectors. If the total perimeter if each sector is 10 inches what is area of the whole pizza? express answer as a decimal to nearest tenth

Answer 1

Let r=radius of pizza.
Each sector has a radius of
2 times radius plus 1/8 of the circumference, or
10"=2r+(2πr)/8
Solve for r.
Then calculate πr²=area of whole pizza.