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Mathematics

2 answers:

ch4aika [34]2 years ago

5 0

1.When all the three cut outs of the angles A, B, C placed adjacent to each other at a point, then it forms a line forming a straight angle, i.e. 180°.

Flence, it is proved that the sum of the three angles of a triangle is 180°.

Therefore, ∠A + ∠B + ∠C =180

ValentinkaMS [17]2 years ago

4 0

Mark them brainliest

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Citrus2011 [14]

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3 years ago

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MrRa [10]

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