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Bogdan [553]
3 years ago
10

How many planes of symmetry does a cube have?

Mathematics
2 answers:
Goryan [66]3 years ago
6 0

Answer:

9

Step-by-step explanation:

Anestetic [448]3 years ago
3 0

Answer:

Nine Planes

Step-by-step explanation:

Three planes are parallel to the six faces of the cube. The other six are diagonal.

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We have a sequence that meets the given criteria, and with that information, we want to get the sum of all the terms in the sequence.

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So we have 5 terms;

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We know that the sum of each term and its neighboring terms is 15 or 25.

then:

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Now, we want to find the sum of all the terms in the sequence (not only the 5 given).

Then let's assume we write the sum of infinite terms as:

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Now we group that sum in pairs of 3 consecutive terms, so we get:

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So we will have a sum of infinite of these, and each one of these is equal to 15 or 25 (both positive numbers). So when we sum that infinite times (even if we always have the smaller number, 15) the sum will tend to be infinite.

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brainly.com/question/21885715

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