Here's my question :

Attachment 25769

Please don't just given the answer. I need to know how to do it. Thank you.

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- Nov 17th 2012, 04:33 PMChaitanyaExpression for surface area
Here's my question :

Attachment 25769

Please don't just given the answer. I need to know how to do it. Thank you. - Nov 17th 2012, 04:38 PMProve ItRe: Expression for surface area
Start by drawing a net of this shape. Then evaluate the area of this net by summing the areas of all the pieces.

- Nov 17th 2012, 04:38 PMskeeterRe: Expression for surface area
four squares, all x by x

two rectangles, all x by 5x/8

two triangles (each 1/2 base times height) ... sketch an altitude perpendicular to the ground, the use Pythagoras to find the height.