Answer:
m < A = 30 degrees.
Step-by-step explanation:
If we draw the triangle we see that:
sin A = BC/AC and cos C = BC/AC, so as sin A + cos C = 1 :
BC/AC + BC/AC = 1
Multiplying through by BC:-
2BC = AC
So sin A = BC/AC = BC / 2BC
= 1/2
- giving m < A = 30 degrees.
