Find the outside surface area. Note that the container may not have a top. Assume a = 15 cm, b = 10 cm, c = 7 cm, d = 12 cm, e = 5 cm.

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anonymous · Answer

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anonymous · Answer

Find the area of each surface and ad them together.  
Looking at the rectangular shapes you have length * width which is
ab  for one rectangle
bc  for one rectangle
cd  for one rectangle

Then you have a triangle on the bottom
The area of a triangle is 1/2 bh   (b and h are found at right angles)
1/2 * ae

So your surface area is ab + bc + cd + .5ae  
Plug in the numbers and you will have your surface area.

anonymous · Answer

341.5 does that sound about right?