Math, asked by roka, 1 year ago

prove that the sum of measure of angles of triangle is 180

Answers

Answered by krishna117
5
<1 +<2 +<3= 180.......to prove
drw xy ll to bc through a
xy ll bc and ab is transversal
therfore , <4=< 2............i) alternate angles
xy is ll to bc and ac is transversal
therfore, <5 =<3......2)alternate angles
but, <4 +<1 +< 5 = 180........by liner pair
from i) and 2)
<2 + <1 +<3 = 180
hence it is proved that sum of all angles of triangle i s 180
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Answered by Anuragseth
8
Proved the question
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