Question

Find the value of X in Fig 4.47 if AB||CD​

Answer 1

Step-by-step explanation:

21. Draw an imaginary line LM through O parallel to AB and CD.

Now AB//LM and BO is transversal.

<ABO = <BOM = 45

similarly,

<MOC =<ODC = 30

Now, <BOC = x =<BOM + <MOC = 45 + 30 = 75°

May it helps you.