Answer:
Step-by-step explanation:
ok
Answer:
x=19
Step-by-step explanation:
In order to solve for x, we want to add the equations to equal 180.
6x+12+3x-3=180
9x+9=180
9x=171
x=19
Answer:
17 cm
Step-by-step explanation:
By Pythagoras Theorem

360° is the correct answer