Question

COB In a rectangle ABCD, the diagonals AC and BD intersect at o. If ∠CAB =350, then ∠COB is ​

Answer 1

Answer:

70°

Step-by-step explanation:

in ∆ OAB

diagnols of a rectangle are congruent and bisect each other.

angle OAB= 35°

therefore angle OAB= OBA = 35°

angle COB is an exterior angle to the ∆ OAB

therefore angle OAB + angle OBA = angle COB

therefore angle COB = 70°