Question

a rectangular piece of paper of width 30 cm and length 77 cm is rolled along its breadth to form a cylinder what is the volume of the cylinder so formed ​

Answer 1

=14148.75cm cube

Step-by-step explanation:

length of rectangle=circumference of circle of cylinder

and width of rectangle = height of cylinder

so 77=2πr

77×7/22×2=r

49/4=r

now,

volume of cylinder=πr^h/

=22/7×49/4×49/4×30

=14148.75cm cube