find the perimeter and area of semicircle whose radii is 4.9
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a semicircle is just the half of a circle
So.....
Perimeter of the semi circle=2πr/2=πr=3.14×4.9=15.384units
Now...
Area=πr²/2=3.14×4.9×4.9/2=37.69 sq.units
Plzz mark it as brainliest ....
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