+118609 The radius of a circle is 1 inch. What is the length of a 135° arc?
Well the circumference is $$2\pi*r = 2\pi*1 = 2\pi \;\;inches$$
but that would be if you have all 360 degrees, you only have 135 degrees. Mmm
So it must be
$$arc\;length= \frac{135}{360}*2\pi\;\;inches$$
+118609 The radius of a circle is 1 inch. What is the length of a 135° arc?
Well the circumference is $$2\pi*r = 2\pi*1 = 2\pi \;\;inches$$
but that would be if you have all 360 degrees, you only have 135 degrees. Mmm
So it must be
$$arc\;length= \frac{135}{360}*2\pi\;\;inches$$
