Question

If AABC ADEF, and mzA = (x + 30)°, mzC = 45°, and m A 15 degrees

B 45 degrees
C
50 degrees
D
80 degrees

Answer 1

D. 80 degree

Explanation:

According to the question:

`\rm m \angle A = (x + 30) \degree \\ \rm m \angle C = 45 \degree \\ \rm m \angle D = 80 \degree`

From above congruence we can conclude:

`\rm m \angle A = m \angle D`

`\therefore`

`\rm m \angle A = 80 \degree`