The bottom shape is a cube with base edges of 24 yards. The top shape is a right pyramid with a height of 5 yards. What is the surface area of this composite figure?

Question

anonymous · Answer

2,928 yd2 

 3,504 yd2 

 2,880 yd2 

 624 yd2

anonymous · Answer

A cube means that it's sides are all the same.  Do you know how to calculate the area of a cube?

anonymous · Answer

I know you have to multiply by 6 becausee there is 6 sides

anonymous · Answer

Nice!  that's great.  Well imagine it's just a square.  Do you know how to get the area of a square?

anonymous · Answer

i think its l*w*h?

anonymous · Answer

Kind of, that would be for a 3 dimensional square shape.  To find the area of a square since all sides are equal, we just need to multiply the L*W which is equivalent to S*S (S=side) which is S^2
Does that make sense?  If it does, from the first part you got right which is to multiply something by 6, what would the area of a cube be?

anonymous · Answer

are you asking for a formula or a number?

anonymous · Answer

Formula, that way you understand how to get it. :D

anonymous · Answer

its 2(lw)+wh i cant remember all of it :/

anonymous · Answer

Nope..  You had the first part right.  it's "something" multiplied by 6.  From what we came up with above, we know that the area of a square (which would be 1 of 6 sides of a cube) is s^2, there for the area of a cube would be 6s^2 where s=length of a side.

anonymous · Answer

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