A metal washer is made by cutting out a circle 13.2 mm in diameter from a larger circle. To the nearest tenth, what is the area of the washer

Question

Mendoza

Mathematics

12 July, 23:32

A metal washer is made by cutting out a circle 13.2 mm in diameter from a larger circle. To the nearest tenth, what is the area of the washer

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Answers (1)

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Jovanni Holt · Answer 1

The standard formula of area of the circle is (pi * r^2)

here r is radius.

So the radius of this washer is equal to 6.1 mm (13.2 / 2)

Therefore the area of the washer

pi * 6.1^2

116.9 mm^2