Question

the diagnols of a rectangle abcd intersect at o. if angle oab is ​

Answer 1

Step-by-step explanation:

AOB=∠DOC=70

In △DOC:

∠DCO=∠CDO

and ∠DCO+∠CDO+∠DOC=180

⇒2∠DCO=180−70=110

⇒DOC= 110 / 2 = 55

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