Question

Math Ch-13. 1. If a Square paper of side 25cm is rolled to rolled to form a Cylinder, then its surface area is.​

Answer 1

Side of square 25cm

Area of square 25

2

=625cm

2

252=625cm2

Answer 2

Answer:

625

Step-by-step explanation:

Answer:= 625 cm^2

Step-by-step explanation: h= side of square = 25 cm

circumference of cylinder =side of square= 25 cm

so $2*pi*r$  = 25

and we know CSA of a sylinder = 2 pi r h = circumference x height

25 x 25 = 625 cm ^2