B is the answer and why is bc I took the quiz
Answer:
Triangles A & C are right triangles.
Step-by-step explanation:
Triangles A & C are right triangles because they make a 90 degree angle were a pair of legs intersect. That box in the corner of each triangle indicates that the triangle is 90 degrees, therefore a right triangle.
Answer:
x=56
Step-by-step explanation:
As ∠FAC and ∠EAD are vertical angles, the measure of their angles must be the same. This means that ∠
Now, we can use the fact that the line EAC would have a measure of 180 degrees.
Due to this, we can add up all of the angle on one side of that line to find x.

Commutative Property of Multiplication. Hope this helps :)