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math10-3

1 Answer

Step 1 :

The diameter of the circle is .

.

The length of the rectangle is .

The width of the rectangle is .

The area of circle is .

Substitute .

The area of the rectangle is .

Substitute and .

Step 2:

The area of the shape in grey is

Substitute and .

.

Therefore, the area of the shape in grey colour is

Solution:

The area of the shape in grey colour is

answered Oct 9, 2015 by lilly Expert
edited Oct 9, 2015 by lilly

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