Question

Stephanie is cutting a pie. Stephanie's mother wants one fourth of the pie. The diameter is 20 cm.

What is the sector area of the pie her mother does not want?

Answer 1

78.55cm^2

Explanation:

Given data

DIameter of pie= 20 cm

Radius of pie= 10cm

Area of pie= πr^2

Area= 3.142*10^2

Area= 3.142*100

Area= 314.2 cm^2

Hence one fourth of 314.2 cm^2 is

= 314.2/4

= 78.55cm^2

Therefore the area of the sector is 78.55cm^2