Math, asked by gaganashreek, 9 months ago

a cylindrical roller 2.5 in length 1.5 m and radius when rolls on a road was found to cover the area of 16500 square how many revolutions does it make​

Answers

Answered by nadeenreddy8667
2

Step-by-step explanation:

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Answered by CUTEB0Y
6

  \large{  \bf\underline{GIVEN : }}

Length of roller = 2.5 m

Radius of roller = 1.5 m

Area covered by roller = 16500 m²

we have to find revolution make by roller to cover this area

Curved Surface Area of roller

C.S.A = 2\pi rh \\  \\ C.S.A = 2 \times  \frac{22}{7}  \times 1.5 \times 2.5 \\  \\ C.S.A = 23.5 {cm}^{2}

No. \:  of  \: Revolution   = \frac{Coverd Area}{ Roller Area}

 Revolution =  \frac{10600}{23.5}  \\  \\ \boxed{ \bf{Revolution  = 702}}

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