Respuesta :

Answer:

∠DSE = 24°

Step-by-step explanation:

The ∠ASE = 168° is the sum of the angles

∠ASB + ∠BSC + ∠CSD + ∠DSE, thus

13° + 85° + 46° +∠DSE = 168°, that is

144° + ∠DSE = 168° ( subtract 144° from both sides )

∠DSE = 24°