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densk [106]
3 years ago
9

Which of the following is the surface area of a cube with a side length of 9cm

Mathematics
2 answers:
MrMuchimi3 years ago
6 0
Area= 6a^2
6times 9^2
486 cm^2
shusha [124]3 years ago
3 0
One may note, you're missing info in your posting

but in any case, notice the picture below, a cube has all sides equal, and notice, is just 6 rectangles stacked up at the edges, and each is a 6x6

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You should write numbers in as many ways as you possibly can to make new connections in your brain. Knowing how to write numbers in many different ways can help you solve complex problems more easily. Doing this can also reinforce the mathematical principles and logic you have memorised.

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Writing a half in many different ways:

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3 years ago
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3 years ago
Josie has a rug with an area of 18 square feet. She will put the rug on the floor that is covered in 1/3 square foot tiles how m
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