If a = 3 and b = 5, find .
2/8
3/8
3/5

(b-a)/(b+a)

a/(a+b)

a/b

Step-by-step explanation:

a=3,b=5 (given)

2/8=(5-3)/(5+3)= (b-a)/(b+a)

3/8=3/(3+5)=a/(a+b)

3/5= a/b

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).