Answer:
x = 38
Step-by-step explanation:
3x-16+x+6+x = 180
5x -10 = 180
5x = 180 + 10
x = 190 / 5
x = 38
The answer to this question is -61
Answer:
38.485(correct to 5 significant figure)/ 12.25π
Step-by-step explanation:


=38.485(cor. to 5 sig.fig.)/ 12.25π
to find arc length of sector,we need to π(radius²)(sector's degree divided by 360 degree)