Answer:
x= - 5
Step-by-step explanation:
x= - 5. it try You Tube
x=50; 1 and 3 = 160°; 2 and 4 = 20°
We know that:
m<1 = (3x+10);
m<2 = (x-30)
So:
(3x+10)+(3x+10)+(x-30)+(x-30) = 360°
---> x = 50
1 and 3 = 160°; 2 and 4 = 20°