In a parallelogram `A B C D` , if `/_D A B=75^0a n d\ /_D B C=60^0,` then `/_B D C= (a)` `75^0` (b) `60^0` (c) `45^0` (d) `55^0`

The diagonals of a parallelogram A B C D intersect at O . If /_B O C=90^0\ a n d\ /_B D C=50^0, then /_O A B= (a) 40^0 (b) 50^0 (c) 10^0 (d) 90^0

The diagonals of a parallelogram A B C D intersect at O . If /_B O C=90^0\ a n d\ /_B D C=50^0, then /_O A B= 40^0 (b) 50^0 (c) 10^0 (d) 90^0

In Figure, If /_A B C=45^0, then /_A O C= (a) 45^0 (b) 60^0 (c) 75^0 (d) 90^0

In Figure, if /_B A C=60^0\ a n d\ /_B C A=20^0,\ find /_A D C

Line segments A B\ a n d\ C D intersect at O such that A C = D Bdot If /_C A B=45^0a n d\ /_C D B=55^0, then /_B O D= (a) 100^0 (b) 80^0 (c) 90^0 (d) 135^0

Draw a parallelogram A B C D in which A B=8c m ,\ A D=5c m\ a n d\ /_A=60^0dot

In a A B C , if /_A+/_B=150^0 and /_B+/_C=75^0, then /_B= (a) 35^0 (b) 45^0 (c) 55^0 (d) 25^0

Line segments A B a n d C D intersect at O such that A C D Bdot If /_C A B=45^0a n d /_C D B=55^0, then /_B O D= 100^0 (b) 80^0 (c) 90^0 (d) 135^0

In a quadrilateral A B C D ,\ /_A+/_C is 2 times /_B+/_Ddot If /_A=140^0\ a n d\ /_D=60^0, then /_B= (a) 60^0 (b) 80^0 (c) 120^0 (d) None of these

In Figure, A B C D is a parallelogram in which /_D A B=75^0a n d\ /_D B C=60^0dot Compute /_C D B\ a n d\ /_A D B