Respuesta :

Answer:

∠ B = 112°

Step-by-step explanation:

The opposite sides are parallel so figure is a parallelogram.

Consecutive angles are supplementary, thus

∠ A + ∠ B = 180°, that is

68° + ∠ B = 180° ( subtract 68° from both sides )

∠ B = 112°

Answer:

The value of B is 112°

Step-by-step explanation:

In this parallelogram, A amd B are adjacent angles. So when adjacent angles are add up, it will form 180°. In order to find B, you have to substract 68° from 180° :

[tex]∠a \: + \: ∠b \: = 180° \: [/tex]

Let ∠A = 68°,

[tex]68 ° \: + \: ∠b \: = 180° \: [/tex]

[tex]∠b \: = 180° - 68° \: [/tex]

[tex]∠b \: = 112° \: [/tex]