Question

a cylinderical roller 2.5m in length and 1.5 m in radius is when.rolled on a road was to cover
$16500 {m}^{2}$
find the number of revolutions it makes​

Answer 1

Answer:

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Answer 2

Answer:

700

Step-by-step explanation:

length = 2.5 m

radius= 1.5m

area covered by rolling = 16500m^2

curved surface area = 2πrl

= 2× 22/7 × 1.5 × 2.5

= 23.57 m^2

number of revolutions = total area

circumference of wheel

• 16500

23.57

= 700

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