Question

an iron water is made by cutting out from a circular plate of radius 4 cm a concentric circular plate of radius 2 cm what is the area face of the washer​

Answer 1

Answer:

Area of the washer would be 37.68 cm²

1) The area of the iron washer would be the area of circle of radius 4 cm - area of circle of radius 2 cm.

2) The area of Larger circle would be 3.14*4*4= 50.24

3) The area of smaller circle would be 3.14*2*2= 12.56

4) Hence the area of Iron washer would be 50.24 - 12.56 = 37.68 cm²

Step-by-step explanation:

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