ABC is a right angle of an isosceles triangle ∆ABC. BD is perpendicular to AC. which of the following , if any , is not a 45° angle.

Question

ABC is a right angle of an  isosceles triangle ∆ABC. BD  is  perpendicular to AC.  which of the following , if any , is not a 45°  angle.

Accepted Answer

সঠিক উত্তর: None of these। ব্যাখ্যা:

ABC is a right angle of an isosceles triangle $∆ A B C . B D i s p e r p e n d i c u l a r t o A C . w h i c h o f t h e f o l l o w i n g, i f a n y, i s n o t a 45 ° a n g l e .$