1.

Find the cost of fencing a semi-circular garden of radius 14 m at Rs. 10 per metre.A. Rs.1080B. Rs.1020C. Rs.700D. Rs.720

Answer» Correct Answer - D
Perimeter of a sexicircle `=pir+2r`
`=(22)/(7)xx14+2xx14=44+28=72m`
`therefore"The cost of fencing"=72xx10="Rs.720`


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