Question

Find m possible answers are 49, 52, 132, 138

Answer 1

∠ABE = (180°-32°)/ 2 (base∠s of isos. △)
=74°

∠EBC= ∠EDC (base∠s of isos. △)
= 64°
∴ ∠ABC= ∠ABE+∠EBC
= 74°+64°
= 138°

∠BCD= 180°-64°-64° (base∠s of isos. △)
= 52°