Question

Observation :
(1) The rectangular sheet of paper covers -
----area of cylinder.
(2)
Area of rectangle =--------area of cylinder.
(3) When rectangular sheet is folded to obtain cylinder, its length becomes -------
of the base of cylinder and its breadth becomes---------of cylinder.
(4) Area of Rectangle = length x breadth
=----------×-------------
=--------------
(5) Curved surface area of cylinder =Areaof rectangle
=-----------------------
(6) Area of base of cylinder =----------------
Total area of two bases =---------------
Total surface area of cylinder = area of two base surface + curved surface area
=---------------- + -----------------
=----------------​

Answer 1

1 CSA of cylinder

2 Curved Surface Area

3 Height

4 2πrh=CSA of cylinder

5 Length× Breadth

6 πr^2

2πr^2

2πrh+2πr^2

2πr(r+h)