Answers

2015-09-14T22:51:49+05:30
Angle a + angle c = 180° 1/2(Angle a + angle c = 180°) 1/2 of angle a + 1/2 of angle c = 90° - ( i) Now in triangle apc, 1/2 of angle a + 1/2 of angle c + angle apc = 180° From (i) equantion, Angle apc = 90°
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