The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?	Choose the correct option.
A) 91.5
B) 92
C) 93
D) 94
E) 95
Perimeter of the sector = length of the arc + 2(radius)   = (135/360 * 2 * 22/7 * 21) + 2(21)   = 49.5 + 42= 
<gadget id="calculator">49.5 + 42</gadget>
<output>91.5</output>
91.5 cm   91.5nswer: Option 91.5
<result>A</result>
The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?