Question

The diagonals of the rectangle ABCD COD=The O ​

Answer 1

Answer:51°

Step by step explanation:

angle AOB =angle DOC

In ∆OAB

angle O+angle A+ angle B=180

78+x+x=180

78+2x=180

2x=180-78

2x=102

x=102/2

x=51

Angle OAB=51

Hope it helps

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