Answers

2015-11-18T16:46:24+05:30
OAD = 25°
So ODA = 25° deg from  the symmetry of a rectangle.
So AOD  = 180 - 25 - 25 = 130°

Hence, the acute angle  between diagonals:  180 - 130  = 50°

OR,

OAD = 25°    So  BAO = 90 - 25 = 65°
Since  ABO = BAO, it is also 65°.

Hence,  BOA = 180 - 65  - 65 = 50°
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