Answer:
11
Step-by-step explanation:
The angles will equal 180.
Thus, the equation is 9x-5+6x+20=180.
15x+15=180.
15x=165.
divide by 15 on both sides, x = 11.
I think the answer would be B
Answer:
Congruent bases does NOT guarantee that a trapezoid is isosceles.
Answer:
C
Step-by-step explanation:
sorry if I'm wrong