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05-06-2017
Mathematics

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

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hongzhi hongzhi

05-06-2017

You said that the radius is 4cm.

We can use the formula for the area of a circle: π x r²

So π x (4)²

is π x 16

= 16π

= 50.3 cm² (aprox).

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