find the area of the shaded portion in figure 6.
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this is your answer ,
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zaidu8826:
your answer is correct
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Area of the shaded region = area of square - 4×area of quadrant
= side × side - 4 × thita pie rsquare/360
=10 × 10 - 4 × 90 × 3.142 × 5 × 5 / 360
= 100 - 3.142 × 25
= 100 - 78.25
=21.75 cm square
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