Two angles that are indicated in bold in the given figure are 90° and 90° respectively.
"In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. "
Given, two angles are measured as (x + 96°) and (96° + x) respectively.
Here, two lines are parallel and another line intersects these two lines.
Therefore, sum of the two angles given is equal to 180°.
Therefore, (x + 96°) + (96° + x) = 180°
⇒ 2x + 192° = 180°
⇒ 2x = -12°
⇒ x = -6°
Now, (x + 96°) = (-6° + 96°) = 90° and (96° + x) = (96° - 6°) = 90°
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