Medal @sdfgsdfgs Help me please. http://prntscr.com/72o4yh
how many faces does a cube have? i don't know how to find the lateral area but i can help you with the surface area
6 squares that is okay he said just the square area
6 faces
so do you need the surface area,
yes
well, you know how to find the area of a square, right
yeah the square area is length*width*height
not unless if you want the square that is kind of 3D which is SA=2LW+2LH+2WH
that's finding the volume of a rectangular figure. to find the area of a SQUARE (not a cube) you simply do x^2, or in this case, 9^2, or 9x9
81
yes, and since the cube has 6 square faces, you multiply the area of a square face (81) by 6, and you get your surface area
SA=486
yes, you're correct
thanks
no problem
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