In the given figure, if ∠A and ∠C is 90∘, then, the figure is a parallelogram.
True
False
If a parallelogram is not a rectangle, then, it does not have any angle equal to 90∘
In the given figure, ABCD is a parallelogram, M is the midpoint of BD and BD bisects ∠B as well as ∠D. Then, ∠AMB= ?
(a) 45∘
(b) 60∘
(c) 90∘
(d) 30∘
In the given figure, ABCD is a parallelogram. If AM bisects ∠A and DM bisects ∠D, then ∠AMD = ____.