<em><u>Solution:</u></em>
<em><u>The length of arc when angle given in degrees is given as:</u></em>
Where,
r is the radius
is the central angle in degrees
From given,
Substituting the values we get,
Thus the measurement of the central angle is 135 degrees
Answer:
521.183133274
Step-by-step explanation:
1.39285714286