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soldier1979 [14.2K]
3 years ago
12

After you prove that two triangles are congruent, what would CPCTC be useful for?

Mathematics
1 answer:
Lapatulllka [165]3 years ago
6 0
Is useful<span> in </span>proving<span>various theorems about </span>triangles<span> and other polygons.

</span>
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Need help with 35 thank you so much!!
Yakvenalex [24]

If a pentagon is regular, then all of the sides are the same length. This means that

5x-4=2x+11 \iff 5x-2x = 11+4 \iff 3x=15 \iff x = 5

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5x-4 = 25-4=21,\quad 2x+11=10+11=21

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