a circular disc has an area of 360 CM square and am of length 11 cm can be stretched from the centre of the days it can revolve 360 degree to clean the disc can this arm completely clean in the disc?
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Answer:
Answer :
512,3:4:5
Solution :
Area of the sector withθ=150∘Area of the circle=π×(6)2×150360π×(6)2=150360=512
Required ratio =(36π×90360):(36π×120360):(36π×150360)
=14:13:512=3:4:5
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