Question

please solve this sum ​

Answer 1

Answer:

according to question :-

1 complete revolution = 1 circumference of the roll roader

diameter of roll roader = 84

radius = 84/2 = 42

so circumference of roll roader = 2πr = 2 * 22/7 * 42 = 2*22*6 = 264 cm

now 1 revolution = 264

so 750 revolution = 264*750 = 198000 cm = 198000/100 = 1980 m Answer

coming to second question :-

radius of that cylinder = 1.5

length of cylinder = 7

so volume if that cylinder = πr^2 h

volume = 22/7 * 1.5 ^2 * 7 = 22*2.25 = 49.5 m^3 Answer

hope you understand plz thank my answer

Answer 2

Answer:

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