9514 1404 393
Answer:
40.0 square inches
Step-by-step explanation:
The radius of each pie is half its diameter. The difference of areas can be found by using the area formula for each pie.
A = πr²
ΔA = π(10/2 in)² -π(7/2 in)² = (π/4)(100 -49) in² = 3.14(12.75 in²) ≈ 40.0 in²
The larger pie has a greater area by about 40.0 square inches.
