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anonymous
 one year ago
6.) Find the surface area of the regular pyramid shown to the nearest whole number. The figure is not drawn to scale.
http://assets.openstudy.com/updates/attachments/55bff878e4b03325500374c7lollygirl2171438647128464as.jpg
my answer: 1,125 m^2. is that correct?
7.) What is the surface area of a conical grain storage tank that has a height of 37 meters and a diameter of 16 metes? Round the answer to the nearest square meter.
my answer: 1152 square meters.
anonymous
 one year ago
6.) Find the surface area of the regular pyramid shown to the nearest whole number. The figure is not drawn to scale. http://assets.openstudy.com/updates/attachments/55bff878e4b03325500374c7lollygirl2171438647128464as.jpg my answer: 1,125 m^2. is that correct? 7.) What is the surface area of a conical grain storage tank that has a height of 37 meters and a diameter of 16 metes? Round the answer to the nearest square meter. my answer: 1152 square meters.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Zale101 @Jhannybean

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hello jhanny can you stay, many of you come and then leave...

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3The surface area of a hexagonal pyramid is defined by this funky formula \[A= \frac{3\sqrt{3}}{2}a^2+3a\sqrt{h^2+\frac{3a^2}{4}}\]

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3We can begin solving this by using the given information to find the height \(h\) of our hexagonal pyramid dw:1438661575125:dw

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3Using the pythagorean theorem for right triangles,... \[h=\sqrt{12^2(7.5\sqrt{3})^2} =~?\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry, was I wrong? @Jhannybean

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Zale101 am i wrong?

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3Im looking for you to work out the problem with me and you yourself will see whether your answer is right or wrong :P

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I just need to know, yes or no. I dont really have much time.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i literally only have a day left until I have to turn in a whole load of work so >.<

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3But now that you have the information to solve for h, we can find our "\(a\)" dw:1438662349721:dw

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3Im sorry, Im helping you solve this to help you understand how to work the problem, I don't have the answer, but I can help you find it :)

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3Now if we can find \(x\) using trig, then you can double it to find the base length \(a\) \[\tan(30) = \frac{x}{7.5\sqrt{3}} \rightarrow ~ x=7.5\sqrt{3}\tan(30)\]\[a=2x\] Therefore if you find x, just double it and you will have the base, \(a\)

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3And now that you have both \(h\) and \(a\), plug it into your funky formula and solve :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so you are telling me I got it wrong then?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0...no offense but you are wasting my time.

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.3Again, I'm not here to give you answers. That's against the code of conduct on openstudy. @ganeshie8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its NOT asnwers, its to see if i know it or not
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