<span> Do you mean this one? </span>∑
It is summation.
<2=40° <11=60°
Because <1 was 140°, 2 is 40°. 40°+80°=120°
180°-120°=60°
Put x on one side of the equation
6x=(76+22)
6x=98
x=98/6
Simplify
x=49/3
Answer:
70.925 I believe
Step-by-step explanation:
