Pls explain only the first one
Use 3.14 for pi
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Area of shape= Area of rectangle+ Area of semicircle
=3×4+3.14×2
=12+6.28
=18.28cm^2 ans.
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Answered by
1
area of rectangle = l*b
=3*4
=12cm
area of semicircle = pi*r*r/2
=6.28 cm
total area = 12+6.28
=18.28
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