Solve the formula for the specified variable
a=p+prt solve for r

Step-by-step explanation:

The first step is to take p on both sides:

On the right hand side, cancel p and -p, since . The equation will be:

Then, divide both sides of the equation by p*t:

On the right hand side, p*t can be cancelled:

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches