As shown in the figure, in square ABCD, ∠ AFD = 65 ° AF and BD intersect at E

As shown in the figure, in square ABCD, ∠ AFD = 65 ° AF and BD intersect at E

∵∠AFD=65°,AB‖CD
∴∠BAE=65°
ABCD is a square
∴BA=BC,∠ABE=∠CBE=45°
∵BE=BE
∴△ABE≌△CBE
∴∠BEC=∠BEA
∵∠BEA=180°-65°-45°=70°
∴∠BEC=70°