Question

A rectangular metal sheet of length 44 cm and breadth 11 cm is folded along its length to form a cylinder. Find the TSA of the cylinder. ​

Answer 1

Answer:

A rectangular metal sheet of length 44 cm and breadth 11 cm is folded along its length to form a cylinder. Find its volume. Solution: Circumference of the base = 2πr = 423.5 cm 3 Hence, the required volume = 423.5 cm 3. Question 21. 160 m 3 of water is to be used to irrigate a rectangular field whose area is 800 m 2. What will be the height of

Step-by-step explanation:

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Answer 2

Answer:

length of sheet becomes circumference of base of cylinder.

so,2πr=44

2*22/7*r=44

so,r=7 cm

breadth of sheet becomes height of cylinder.

so,h=11 cm

Now,TSA=CSA (As cylinder is hollow )

So,TSA=2πrh

= 2*22/7*7*11

=484 cm²