A rectangular sheet of paper of length 88 cm and breadth 10 cm is rolled along its length and a cylinder is formed. Find the total surface area of the cylinder so formed .pls solve quickly and step by step.
Answers 1
Answer: 2112 cm sq.
Step-by-step explanation:
Length of the paper= 88 cm
Breadth of the paper= 10 cm
Area of the paper= 88×10= 880 cm sq
Now, the height of the cylinder (h) = 10 cm
Let, the radius of the cylinder= r cm
then, the circumference= 2πr cm
so, we can write
2πr = 88
=> r = 14
Then total surface area of that cylinder =
[tex]2\pi \: r {}^{2} \:+ 2\pi\:r\:h \\ [/tex]
= 1232+880
=2112 cm sq
-
Author:
prestonraqf
-
Rate an answer:
19
If you know the answer add it here!
Choose a language and a region
How much to ban the user?
1 hour
1 day
100 years