I cannot see the image you should zoom in next time
x-+25=-55
subtract 25 from each side
x=-80
The arc length by definition is given by:
S = R * Theta
Where,
R: radio
Theta: central angle
Substituting values we have:
S = (5.8) * (5.4)
S = 31.32 inches
Answer:
The value of s, the arc length (measured in inches) is:
S = 31.32 inches
Consider the equation for the circumference of a circle, 2πr. Notice that this can also be written as 2rπ.
Recall that the diameter of a circle is equal to twice the radius, or
d = 2r
And make a substitution into the original equation, giving us the circumference c = πd. We know the circumference is 5.2mm; plugging in, we get
5.2 = πd.
Note: π is NOT a variable, it represents a number. Therefore, we can solve the equation for the diameter d = c / π, or
d = 5.2 / π.
I'll let you crunch the number :D
I hope this helps!