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navpreet
 2 years ago
surface area of a cylinder?
navpreet
 2 years ago
surface area of a cylinder?

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huneya
 2 years ago
Best ResponseYou've already chosen the best response.0Surface Area = 2(pi r 2) + (2 pi r)* h

navpreet
 2 years ago
Best ResponseYou've already chosen the best response.0a tin soup is in the shape of a cylinder. it has a radius of 3cm and its height is 12cm. the tin has a label which fits exactly around the cylinder with no overlap. calculate the area of the label with 3 significant figures.

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1\(\Large{2 \pi rh+2\pi r^2}\)

navpreet
 2 years ago
Best ResponseYou've already chosen the best response.0what does the arrow mean that goes upwards?

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.2Cylinder: Two circles and the curved surfaces Area of Circle: pi*r^2 Area of curved surface: circumference of ^ circle * height of cylinder circumference: 2*pi*r so area of curved surface: 2*pi*r*h Total area: 2*pi*r^2 + 2*pi*r*h =2*pi*r(r+h)

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.2The ^ means to the power of e.g. 5^2 = 25

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.2In your question, the label is the area of the 'curved surface'. Which we showed to be 2*pi*r*h
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