Question

A roll of news paper of length 7000 m and thickness 022 cm is rolled into a solid cylinder, then its
radius is​

Answer 1

Answer:

83.7 cm

Step-by-step explanation:

volume of cylinder = volume of paper

πr^2b = lbt

r^2 = l×t/π

r^2 = 1000 ×0.22/100×7/22

r^2 = 0.7

r = √0.7

r = 0.8366 m

radius = 83.7 cm

Note :

1) thickness is given unclear (without decimal)

2) l = lenghth t = thickness b= width

3) paper is rolled along width