Question 8 help please, please provide proper explanation! BIG POINTS

176 cm

Step-by-step explanation:

45 degrees is what fraction of the circle

45/360  = 1/8

So multiply the arc length by 8 to get the circumference of the entire circle

22* 8 =176 cm

C

Step-by-step explanation:

(45/360) × Circumference = 22

Circumference = 22 × 360/45

= 176 cm

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47