The measure of the angle ∠x is 77° and the alternate property justifies the angles. Then the correct option is B.
What is an angle?
Angle is the space between the line or the surface that meets. And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.
Alternate angle - If two lines are parallel then the third line will make z -an angle and z-angles are equal angles with the parallel lines.
Angle ∠ABF is 77°.
Then the value of x will be
We know that the angles ∠ABF and ∠x are alternate angles.
∠ABF = ∠x = 77°
More about the angled link is given below.
https://brainly.com/question/15767203
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