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1075 square inches

Formulae:

r = 18.5d = 37C = 116

A = πr2 = π(d2)2

A = C24π

π = 3.1415

A = area

C = circumference or perimeter

r = radius, d = diameter

Solution Steps:

Area of a circle in terms of radius:

Area = π·r2 = 3.14·18.52 = 1075 square inches(*)

Area of a circle in terms of diameter:

Area = π·(d2)2 = 3.14·(372)2 = 3.14·(18.5)2 = 1075 square inches(*)

Area of a circle in terms of circumference:

Area = C24π = 116.224π = 13502.44(4·3.14) = 13502.4412.56 = 1075 square inches

all it means is function 3