Step-by-step explanation:
As we can see it a right angled triangle
so <y =90°
Now
3x + 11° + 25° + 90° = 180°{being sum of angles of triangle}
3x + 126° = 180°
3x = 54°
X = 18°
Answer:
Using the section formula
= = = =
-2(7-15) / 4
-2(-8) = 16
16/4 = 4
Answer is 4
