Answer:

Step-by-step explanation:
we know that
DGH ~ DEF ---> given problem
Remember that
If two triangles are similar, then the rtio of its corresponding sides is proportional and its corresponding angles are congruent
so

substitute the given values


Answer:
It's possible depending on the angle and the type of triangle
Answer:
40°
Step-by-step explanation:
All angles must equal 180.
110°+30°+_40°_= 180°
Answer:
D= f/4G-m3
Step-by-step explanation:
I believe this is it but I'm not quite sure.
you should ask a tutor as well.