Math, asked by ritika103, 1 year ago

the sum of the three angles of triangle os 180°​ proved that​

Answers

Answered by Anonymous
1

Answer:

If ABC is a triangle then <)ABC + <)BCA + <)CAB = 180 degrees.

Proof

Draw a line "a" through points A and B. Draw a line "b" through point C and that "b" line should be parallel to line "a".

Since lines a and b are parallel, <)BAC = <)B'CA and <)ABC = <)BCA'.

It is obvious that <)B'CA + <)ACB + <)BCA' = 180 degrees.

Thus <)ABC + <)BCA + <)CAB = 180 degrees.

Answered by Anonymous
1

Step-by-step explanation:

answer refer to the attachment.

Attachments:
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