The sector of a circle has radius of 21 cm and central angle 130o. Find its perimeter?	Choose the most appropriate option:
A) 91.5 cm B) 89.6 cm C) 91.8 cm D) 92.5 cm E) 99.5 cm
Perimeter of the sector = length of the arc + 2(radius)   = (130/360 * 2 * 22/7 * 21) + 2(21)   = 47.6 + 42= 
<gadget id="calculator">47.6 + 42</gadget>
<output>89.6</output>
89.6 cm   Answer:89.6 cm
<result>B</result>
The sector of a circle has radius of 21 cm and central angle 130o. Find its perimeter?