The radius of the circular lens of a magnifying glass is 4 centimeters what is the area in square centimeters of the glass

The area of a circle is:

A=πr^2, where π is the constant pi and r is the radius of the circle.

In this case the radius is 4cm:

A=π(4^2) cm^2

A=16π cm^2  (exact)

A≈50.27 cm^2  (to the nearest hundredth of a square centimeter) 

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1.5 pounds because you put 9over 6 and then divide by 6