prove that sum of interior angles of triangle is 180 degrees
rakshu:
which class ques it is?
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Answered by
1
DRAW A LINE AT THE TOP OF TRIANGLE BY THIS 3 ANGLE X,Y,Z=180 BECAUSE THEY ARE IN STRAIGHT LINE THEN X&Y ARE VERTICALLY OPPOSITE TO OTHER 2 CORNERS OF TRIANGLE AND Y IS CONSTANT IN ITS PLACE
BY THIS
X+Y+Z=180
BY THIS
X+Y+Z=180
Answered by
1
by exterior angle property
extend bc so new angle formed ang.4
ang. 1 + ang. 2 = ang. 4
ang. 4 + ang 3= 180
add both the eq.
ang 1 + 2+3 =180
extend bc so new angle formed ang.4
ang. 1 + ang. 2 = ang. 4
ang. 4 + ang 3= 180
add both the eq.
ang 1 + 2+3 =180
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