Question

1.A diagonal of a rectangle is inclined to one side of the rectangle at 250. The acute angle between the diagonals is
(a) 550 (b) 500 (c) 400 (d) 250

2.In parallelogram ABCD, bisectors of angles and B intersect each other at O. The value of AOB

is:
(a) 300 (b) 600 (c) 900 (d) 1200

3. If an angle of a parallelogram is two-third of its adjacent angle, the smallest angle of the parallelogram is

(a) 1080
(b) 540
(c) 720
(d) 810

​

Answer 1

Answer:

Option B

Option A

Option C

Answer 2

Step-by-step explanation:

1. from symmetry of a rectangle. So AOD = 180 - 25 - 25 = 130 deg. Hence, the acute angle between diagonals : 180 - 130 = 50 deg.

2 . photo 1

3. photo2