Question

What information is NOT necessary to find the area of a circle?

a.
pi
c.
diameter
b.
radius
d.
height

Answer 1

D. Height

General Formulas and Concepts:

Geometry

Area of a Circle: A = πr²

• r is radius

Explanation:

In order to find the area of a circle, we must follow the formula. Out of all the options given, height is not incorporated into the formula.

It wouldn't make sense to use height anyways since it would be 3-dimenional and we're talking 2-dimensional.

∴ our answer is D.