Question

A circular railroad-crossing sign has a diameter of 30 inches. Which measurement is closest to the area of the sign?

Answer 1

A is about 706.86 inches squared hope this helps! :)

Explanation:

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·302≈706.85835in²