AdolphWeader AdolphWeader

25-05-2015
Mathematics

Answered

A circular lid has a diameter of 12 inches. What is the exact area of the lid? A. 6π square inches B. 12π square inches C. 24π square inches D. 36π square inches

Answer :

RedRicin RedRicin

25-05-2015

The area of any circle is equal to [tex]\pi r^2[/tex], where r is the radius.

We know that the diameter is 12. The radius is always half of the diameter, so the radius of our circle must be 6.

Substitute 6 for r in our equation and simplify.

π6² = π6×6 = 36π in²

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