ans no 11 please answer for me
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Bhai 2πr(r+l) krke cost se multiply
ayusmaan:
bhai l kya hai
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Circumference of plot = 44m
let radius be r
Circumference of circle= 2pi r
ATQ
44m=2×22/7×r
44m= 44r/7
44r= 44×7
r= 308/44=7
Area of plot including path = pi r sq.
=7+3.5=10.5msq.
22/7×10.5×10.5=346.5 msq.
Area of plot excluding path= pi r sq.
=22/7×7×7
=154msq.
Area of path= 346.5-154 msq.= 192.5 msq.
Cost of paving the path = 192.5×20
=Rs 3850
please mark its brainliest
let radius be r
Circumference of circle= 2pi r
ATQ
44m=2×22/7×r
44m= 44r/7
44r= 44×7
r= 308/44=7
Area of plot including path = pi r sq.
=7+3.5=10.5msq.
22/7×10.5×10.5=346.5 msq.
Area of plot excluding path= pi r sq.
=22/7×7×7
=154msq.
Area of path= 346.5-154 msq.= 192.5 msq.
Cost of paving the path = 192.5×20
=Rs 3850
please mark its brainliest
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