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waheguru
 4 years ago
need some help im getting 311
waheguru
 4 years ago
need some help im getting 311

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waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0im posting the question sorry

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Do you have the formula for the surface area of a cylinder?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Surface area of fully cylinder = circumference * length. Here, you have half of it. So, 1/2*circumference*length = 1/2 * pi * 6 * 30 = 90 * pi

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0waheguru  that is when including bottom and top circles. In this case, the roof has no such thing. So, you just need 1/2 circumference * length.

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0oh so i included the bottom???

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0k so this is what i did 2 x pi x 3^2 + 2 x pi x 3 x 30 and divide by 2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Remove 3*pi*r^2 and the rest is good.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Because the roof does not have a base and top (according to the problem description).

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.0the question is asking for the area of the roofs curved surface  that does not include the two ends of the greenhouse

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.0the curved surface of a cylinder has a surface area of \(2\pi rh\). in this case you have half a cylinder, so the surface area becomes \(\pi rh\)

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0just practising for grade 9 EQAO

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0evil questions attacking ontario lol im kidding its like an exam for grade 9 students

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.0lol! :D  good luck with them...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0is half perimeter of base multiply lenght=surface area

asnaseer
 4 years ago
Best ResponseYou've already chosen the best response.0@jhonyy9  things are always easy when you know how to do them  try and recall the days when you were also at the lower end of the learning curve :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes right but this is the same like a rectangle curved on the base
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