Question

in the figure to the right, s || t. use the figure to answer
the following exercise.
∠1 is congruent to which two of the following angles?
select all that apply.
∠a∠b∠c∠e

Explanation:

Step1: Vertical Angles

Vertical angles are congruent. $\angle 1$ and $\angle b$ are vertical angles.

Step2: Corresponding Angles

Since $r\parallel s$, by the Corresponding Angles Theorem, $\angle 1$ and $\angle d$ are congruent.

Answer:

$\angle b$ and $\angle d$