Answer:
the value of BD is 18.
Step-by-step explanation:
Our given are two triangles and these triangles are congruent. It means that they have the same measures of angles and sides.
ΔABD ≅ AFEC, based on this we find there equivalent sides and angles
AD ≅ FC (measures 19.7)
∠A ≅ ∠F (measures 63°)
FE ≅ AB (measures 12)
∠B ≅ ∠E (measures 72°)
∠D ≅ ∠C (measures 45°)
lastly BD ≅ CE (measures 18).
