11. If the perimeter of a semi-circular protractor is 36 cm, find its – InterviewSolution

1.	11. If the perimeter of a semi-circular protractor is 36 cm, find its diameter. \| Ď--ORIf the permeter of a protractor is 72 cm. calculate its area. (Use Ď)12.The mean and median of 100 observations are 50 and 52 respectively. The value of the largestobservationis 100. It was later found that it is 110 not 100. Find the true mean and median.
Answer» Perimeter of semicircle =36 cmπr+2r =3622/7 r+ 2r =3622r +14r = 25236 r = 252r = 252/36r = 7d = 2x7=14

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