Answer:
10
Step-by-step explanation:
(5x + 15)° + (6x + 8)° + (4x + 7)° = 180°
15x + 30 = 180 ⇒ <em>x = 10</em>
Answer:
2/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
first option you can try and draw aand plot them in a graph and rotate it at 180 degrees to get A(-6,8) B(-6,2) C(-2,2)
Or use the principle that when you rotate co-ordinates at 180 thye x-axis remains constant and tyhe y-axis changes its sign + to- or - to +