Question

The value of x in the above Fig. is

• A. ${30}^{\circ }$
• B. ${45}^{\circ }$
• C. ${60}^{\circ }$
• D. none of these

Answer 1

The correct option is A ${30}^{\circ }$

Consider the Given figure,

Now,

$\angle ABF={90}^0-{60}^0={30}^0$

Now, BF and CD are parallel to each other and line BC is transversal,

So,

$\angle BCD=\angle ABF$

$\angle BCD={30}^0$

$X=\angle BCD={30}^0$

$X={30}^0$

Hence, this is the answer.