find the curved surface area and the total surface area of a cylinder whose volume is 1.54cm cube and radius of box is 70 cm
Answers
Step-by-step explanation:
Volume of cylinder = πr²h
1.54 m³ = π(70)²h
Since, 1 cm = 1/100 m
70 cm = 70/100 m = 0.7 m
1.54 m³ = π(0.7)²h
1.54/0.49 = πh
3.14 ( approx ) = πh
3.14 × 7/22 = h
1 metre( approx) = height
Curved surface area of cylinder = 2πrh
= 2 × 22/7 × 0.7 m × 1 m
= 2 × 22 × 0.1 × 1
= 4.4 ms²
Total surface area of cylinder
= 2πr( h + r )
= 2 × 22/7 × 0.7 m ( 0.7 + 1 ) m
= 2 × 22 × 0.1 m × 1.7 m
= 7.48 ms²
Hope it helps dude
Answer:
Top answer · 679 votes
Given:-Volume of the cylinder = 1.54m³
Diametre of the base = 140cm
Radius of the base = 140/2
=70 cm
=0.7 cm
volume of cylinder=πr^2
1.5=22/7*0.7^2*h
1.5*7/22*0.7*0.7=h
h=1
height=1 meter
Step-by-step explanation:
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