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anonymous
 5 years ago
Someone please help with surface area of pyramids and cones
anonymous
 5 years ago
Someone please help with surface area of pyramids and cones

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0are these answers correct? the first one i got 282.6m^2 the second one i got 175.84in^2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if you can cut the cone up its lengthand make into part of a circle, the surface area is easy to get :) maybe even easy if I think about it some

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0is the 10 inches the length up the side of the cone or the height?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0its actually slant height

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then that 10 inch length is the radius of a larger circle, find its circumference" 2pi10 20pi is its curcumference the small base circle is the length of the circumference that you want to find an area for 2pi4 = 8pi make sense?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[s =\pi \times r ^{2}+\pi \times r \times l\] is the formula i need to use

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0length of an arc = theta(r) 8pi = theta(10) theta = 8pi/10 = 4pi/5 area of sector = theta r^2/2 (4pi/5)(10)(10)/2 200/5 = 40pi fpr the surface area of the cone, do we include that base in this or not?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.040pi + 16pi = 56pi if I did it right :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0175.92 is what I get... is that close enough?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0175.84 if you use (3.14)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how would i find the surface area of this one

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if im doing it right, I get 85pi

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0would i use half the diameter?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if you dont have answers to check against, I would suggest gettting a second opinion :) but yes, radius is half the diameter

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[s =\pi \times 5^{2}+\pi \times 5 \times 12\]

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i got 25pi + 60pi too :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0im glad the formula works :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0witch would = 266.9ft^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0would you please help me with three more

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i could try.... getting kinda deer in the headlights feeling....must.....carry.........on. . . . . . . ok

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0find the surface area of the regular pyramid

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0#31 3cm is pointing to what?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03cm is height i believe

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0is it face height or pyramid height?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the formula for this on is S=B+1/2Pl

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0looks like pyramid hight

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0pyramid height would have a dotted line stricking down the middle of it..... i think its face height.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.04cm^2 + 12 cm^2 = 16 cm^2 for #31

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0#32...all I see is a 7 and not much else for details...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0is that all sides are 7? like an equalateral triangle?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then I would do: 4 times (1/2)(49)sin(60) 84.87 m^2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if you have a sideangleside, the area can be determined by: (side)(side)(sin(angle))/2 and there are 4 sides so I timesed it by 4 :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(side)sin(a) = height, and the other side = base

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0and for the last one its just like the first except with decimals..

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(9.2)^2 + 4(9.2)(13)/2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.084.64 + 239.2 = 323.84

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay thank you so much
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