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The perimeter of a semicircular plate is 108cm, find its area. |
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Answer» -STEP explanation:Perimeter of a SEMICIRCULAR PLATE = PI * R + 2R108 = R ( pi + 2 )108 = R ( 3.14 + 2)108 = R * 5.14R = 108/5.14R = 21Now,area of a semicircular plate = pi * R * R / 2area = 22/7 * 21 * 21 * 1/2area = 11 * 3 * 21area = 693area = 693 sq.cm |
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