I will give you 5 stars and a heart.

2 answers:

7 0

Ok so a rectangular prism is the same as a rectangular cuboid.

The surface area is all the areas of the faces added together ->

There are three different faces that occur twice

length -> l
width -> w
height ->h

2( l * w ) + 2( l * h ) + ( w * h )

2 ( 10 * 4.5 ) + 2 ( 10 * 8.75 ) + 2 ( 4.5 * 8.75 ) = 343.75 cm2

Therefore it's A

Hope this helps :P

lesantik [10]3 years ago

3 0

The surface area is 343.75 option A

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