it is required to make a closed cylindrical tank of height 1m base diameter 140 cm from a metal sheet how many square metre of sheet are required for the same
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Answered by
21
Answer:
Step-by-step explanation:
Radius of cylinder=140/2=70cm
Height of cylinder=1m = 100cm
Total surface area of cylinder =2πr(r+h)
= 2×22/7×70(70+100)
=2×22/7×70×170
=748000cm²or74.8m²
Metal sheet required=74.8m²
Answered by
7
the required metal = total surface area of cylinder
= 2 pai r ×h + pai r square
=30.8
= 2 pai r ×h + pai r square
=30.8
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