The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?
Pick:
A) 91.5 cm
B) 93.5 cm
C) 94.5 cm
D) 92.5 cm
E) None of these
Explanation:   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   91.5 cmNSWER IS 91.5 cm
<result>A</result>
The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?