Please help.... what is it’s measure

right
Answer:
90°
Step-by-step explanation:
Type of angle foremd= right
Measure = 40° + 50° = 90°
Answer:
Right - 90°
Step-by-step explanation:
∠ABD = 40°
∠DBC = 50°
∠ABC = 40° + 50° = 90° So, ∠ABC is a Right angle and formed with measure 90°
Hope this helps ^-^