Answer:
The triangle can be classified as a right triangle.
Step-by-step explanation:
Take a look at triangle ACD alone. There is a right angle on the side of ABC in which the other triangle ACD should also be a right triangle since it has a right angle.
6-4x=-2x +4
6=2x +4
2=2x
So
X=1
6.3 because you round 6.324 to get 6.3