Answer to Q189:
From the above diagram, what is the area of the shaded portion?
The area of the shaded portion will be area of the square - area of the circle
= L² - (πr²) (where L = 2r)
= (20x20) - (π x x 10 x 10)
= 400 - 314.16
= 85.84
Answer: 85.84 sq. unit
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