a sheet of paper 140 cm long and 66 cm broad is rolled along with its weight to form a cylinder find its total surface area
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Answered by
2
Answer:
9240
Step-by-step explanation:
lateral \: surface \: area = 2 \times \pi \times r \times h
rolled along width
therefore, h=66
length of the sheet=circumference of base of cylinder
2πr=140
LSA=140×66
=9240
Answered by
0
Answer:
length and breadth of sheet= 140 cm and 66 cm.
radius= 140/2 = 70 cm
length of the sheet = circumference of base of cylinder.
2 pie r = 140 cm.
LSA= 140 into 66 = 9240 cm *2.
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