80 circular plates, each of radius 21 cm and thickness 16 cm are placed one
above the other to form a solid right circular cylinder. Find the total surface
area and volume of the cylinder,
Answers
Answered by
7
Answer:
171732 cm
1774080 cm cube
Step-by-step explanation:
Radius of cylinder=radius of plate=21cm
height of cylinder=80× thickness of plate=80×16
=1280 cm
Total surface area= 2πr (h + r)
=2×22÷7×(1280+21)
=171732 cm
volume=πr2h .
=22÷7×21^2×1280
=1774080 cm^3
Answered by
3
Answer:
Given:
radius-21 cm
height-16 cm x 80= 1280cm
volume=πr²h
=22/7x21x21x1280
=1774080 cu.cm
Step-by-step explanation:
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