Question

in the figure to the right, s||t. use the figure to answer the following exercise. ∠a is congruent to which two of the following angles? select all that apply. ∠f ∠a ∠b ∠d

Explanation:

Step1: Identify vertical - angle relationship

Vertical angles are congruent. $\angle a$ and $\angle b$ are vertical angles, so $\angle a\cong\angle b$.

Step2: Identify corresponding - angle relationship

Since $s\parallel t$, $\angle a$ and $\angle d$ are corresponding angles. Corresponding angles formed by parallel lines and a transversal are congruent, so $\angle a\cong\angle d$.

Answer:

$\angle b$, $\angle d$