Math, asked by diyamb, 11 months ago


In triangle ABC, AB = 20 cm, BC = 21 cm
touching all the sides of triangle ABC.​

Answers

Answered by dhatriM
2

Answer:

AB+BC+CA=180°

20+21 +CA=180°

41 +CA=180°

CA=180°-41

CA=139°

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