caishenxiaoxiao
caishenxiaoxiao caishenxiaoxiao
  • 15-10-2021
  • Mathematics
contestada

In triangle ABC, if cos²A+cos²B+cos²C=1, then triangle ABC is () triangle.

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dangolprashna997
dangolprashna997 dangolprashna997
  • 15-10-2021

Answer:

180 °

......

Step-by-step explanation:

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