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martai · Answer

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Vocaloid · Answer

I’m on my phone, but imagine the rectangle being sliced parallel to DCGH (the front side)

You end up with “slices” that are rectangles with the same size as DCGH

Each cross-section therefore is a rectangle with the same dimensions as DCGH

Now, look at the dimensions given in the problem - what are the dimensions of DCGH? Remember your properties of rectangular prisms

martai · Answer

@vocaloid wrote:

I’m on my phone, but imagine the rectangle being sliced parallel to DCGH (the front side) You end up with “slices” that are rectangles with the same size as DCGH Each cross-section therefore is a rectangle with the same dimensions as DCGH Now, look at the dimensions given in the problem - what are the dimensions of DCGH? Remember your properties of rectangular prisms

wouldn't be a ?

Vocaloid · Answer

Not quite

They don’t give you the dimensions of DCGH directly but we can infer them from the dimensions given

The width GH must have the same length as EF
Height CH must have the same as Bf

So with that in mind what are the width and height of DCGH

martai · Answer

soo b

Vocaloid · Answer

Good, the dimensions are 12 * 21

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