We know that the three angles of a triangle always add up to 180.
Therefore, we have the equation:
55+20+x=180.
Solving for x, we get x=105.

Subtract, not add, -0.72 from both sides.
Answer:
1). 35.5
2).commutitive property of addition
3).Both
Step-by-step explanation:
1). 35.5
2).commutitive property of addition
3).Both
Answer:
x = 2
Step-by-step explanation:
AC = BC
5x = 10
x = 2
Answer:
40 in. I took the test
Step-by-step explanation: