Question

Hi everybody! I need help, and this question is worth TEN points!

Answer 1

Answer:

Step-by-step explanation:

we know,

The Angle Addition Postulate states that: If a point  lies in the interior of an angle, then the postulate describes that putting two angles side by side with their vertices together creates a new angle whose measure equals the sum of the measures of the two original angles.

Here, W is the internal point.

The two angles are  UVW and WVX.

Now, by the angle addition postulate,

UVX is equal to the sum of  UVW and WVX.

Hence, the reason is-

Angle Addition Postulate