Question

which two line - segments appear to form an acute angle? ab and ad bc and cd bc and da ba and bc

Explanation:

Step1: Recall acute - angle definition

An acute angle is an angle that measures less than 90 degrees.

Step2: Analyze each option

• For $\overline{AB}$ and $\overline{AD}$: The angle $\angle BAD$ appears to be an obtuse angle (greater than 90 degrees).
• For $\overline{BC}$ and $\overline{CD}$: The angle $\angle BCD$ appears to be an obtuse angle.
• For $\overline{BC}$ and $\overline{DA}$: These are non - adjacent sides and do not form an interior angle of the trapezoid in a relevant way for this problem.
• For $\overline{BA}$ and $\overline{BC}$: The angle $\angle ABC$ appears to be an acute angle (less than 90 degrees).

Answer:

$\overline{BA}$ and $\overline{BC}$