Question

△abd≅△fec
what is the value of bd?
117
18
10
13.7

Explanation:

Step1: Recall property of congruent triangles

If $\triangle ABD\cong\triangle FEC$, then corresponding sides are equal.

Step2: Identify corresponding sides

$BD$ corresponds to $EC$. Since $EC = 8 + 10=18$, and $BD = EC$ because of triangle - congruence.

Answer:

18