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Sauron [17]
3 years ago
5

PLEASE HELP I BEG YOU!!! What is the longest line in a cube that has a side length of 7 cm?

Mathematics
1 answer:
xeze [42]3 years ago
3 0

Answer:

14cm

Step-by-step explanation:

All side lengths in a cube will be 7 as the properties of a cube are such that all the side lengths are the same.

Think of the longest line in a cube as a hypotenuse on a triangle.

7^{2} + 7^{2} = c^{2}

49 + 49 = c^{2}

c^{2} = 98

c = \sqrt{98}

(\sqrt{98})^{2}   + (\sqrt{98} )^{2} = c^{2}

c^{2} = 98 + 98

c^{2} = 196

c = \sqrt{196}

c = 14

The longest line in a cube that has a side length of 7cm is 14cm.

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Hello,

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4 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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