The semi-circles in the triangles represent the verteces or different angles on certain points of the triangle.
-Hope this helped! :D
Answer:
isosceles
x=14
Step-by-step explanation:
isosceles because of the two I symbols on the triangle
x+5=2x-9
5+9=2x-x
14=x
Answer:
13 1/12
Step-by-step explanation: