Question

A rectangle piece of paper is 44 cm long and 20 cm wide a cyl. Is formed by rolling the paper along its length find the lsa of the cyl.

Answer 1

Here, Height of cyl.= 44cm
and circumference of cyl.= 20 cm...
i.e. 2πr=20 cm
or, 2 x 22/7 r = 20 cm
or, 44/7 r=20cm
or, r = 35/11
or, r = 3.18 cm

so, lsa(csa) of cyl. = 2πrh
= 2 x 22/7x 3.18 x 44
= 880 cm²

Answer 2

Answer:L.S.A of the cylinder=880 cm^2

Step-by-step explanation: