Question

The+radius+of+a+roller+is+60 and its length is 84 cm.

Answer 1

Dimensions of a roller :

radius (r) = 60cm

length (height )of the roller = h

Distance covered in one rotation = curved surface area

of the cylinder

= 2πrh

= 2×(22/7)×60×84

= 2×22×60×12

= 31680 cm²

= 3.168 m²

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