To find the remaining area of the pie, you will need to find the area of the original pie and then multiply it by 7/8 because that is the amount of the pie that was NOT eaten.
Here is the formula to find the area:
A = pi x r^2
22/7 x 1/8^2
A = 11/224 square units is the area.
7/8 x 11/224 = 11/256 square units is the area of the original pie.
