SOLUTION: Unless otherwise stated, answers that need to be rounded should be rounded to three significant digits. For the following, θ is a central angle in a circle of radius r. Find

Algebra ->  Trigonometry-basics -> SOLUTION: Unless otherwise stated, answers that need to be rounded should be rounded to three significant digits. For the following, θ is a central angle in a circle of radius r. Find       Log On


   



Question 1074995: Unless otherwise stated, answers that need to be rounded should be rounded to three significant digits.
For the following, θ is a central angle in a circle of radius r. Find the length of arc s cut off by θ. (Round your answer to one decimal place.)
θ = 135°, r = 4

s = in

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Can do this by converting 135 degrees to radians then multiplying by 4 in.
Or, since the perimeter is 2*pi*r or 8pi inches, the arc is 135/360 of that or 3pi inches, or 9.4 inches.