Question

step angle reason 1 m∠abe = 110° given 2 m∠ebc = 70° linear pair (or triple) try m∠□ = □° select a reason a b 110° 70° c d f

Explanation:

Step1: Identify corresponding angles

Angles $\angle EBC$ and $\angle BCF$ are corresponding angles formed by transversal $BC$ cutting parallel lines $BE$ and $CF$.

Step2: Apply corresponding angles postulate

Corresponding angles are congruent, so $m\angle BCF = m\angle EBC$.
<Expression>
$m\angle BCF = 70^\circ$
</Expression>

Answer:

$\boldsymbol{m\angle BCF = 70^\circ}$, Reason: Corresponding Angles Postulate