Question

diagnals of a parlellogram intersect at O if angle BOC is 90* and anhle BDC is 50 * find angle OAB​

Answer 1

Answer is 40° because angle sum property

<ODC = 180-(90+50)

= 40°

and <OAB are alternate interior angle and are equal...

Answer 2

Answer:

Step-by-step explanation:

AOB+BOC = 180 {supplementary angles}

AOB = 180-90 =90

CD is parallel  to AB

BDC=DBA = 50 {alternate angles}

triangle AOB

AOB + OAB + OBA = 180

OAB = 180 -{90+50}

OAB = 40

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