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anonymous
 5 years ago
Can someone help me with Surface area of pyramids and cones
anonymous
 5 years ago
Can someone help me with Surface area of pyramids and cones

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Find the slant height of the regular pyramid or cone

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you know what pathagorean therom is?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah isnt it a^2+b^2=c^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok so find the length of the hypotenuse of the pyramid (for the first one)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0369=c^2 you still need to get rid of that exponent.. so you get \[3\sqrt{41}\]. Now that you have all the lengths apply the forumla for area of a triangle. Area = 1/2 * base * height

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Because you have 4 triangles you could change your forumla to reflect that A=4(1/2*b*h)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Then don't forget the add the area of the base of the pyramid itself... width * height. Add them both up, and that's surface area.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0http://www.ajdesigner.com/phptriangle/isosceles_triangle_area_k.php

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Take the area of one of the isosceles triangles, multiply it by 4 and add it to the area of the base. Forget that 1/2 B*H I messed up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you see the forumla for the area of an isocoles triangle I sent you?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok so do you see how each side of the pyramid is an isocles triangle?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok so on the forumla you know that B=12, and C and A are the same and using pythagorean theorm we know it is \[3\sqrt{41}\] So plug all those into the forumla and you will have the area of ONE side of the pyramid.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm going to take your word on that... lol. Now what do you think you do?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0right, and then add what?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0There you go, that's the surface of a pyramid.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0As long as your algebra was right when putting those numbers in.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Assuming your algebra is correct, yes..
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