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प्रश्न
Find the perimeter of the adjoining figure, which is a semicircle including its diameter.
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उत्तर
Radius = `10/5`
= 5 cm
Circumference of semicircle = `(2pi r)/2`
= `2 xx 1/2 xx 22/7 xx 5`
= 15.71 cm
Total perimeter = Circumference of semicircle + Length of diameter
= 15.71 + 10
= 25.71 cm
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