The area of a sector of a circle of radius 5 cm formed by an arc of length 4 cm is? Options
A) 8.78  B) 8.67  C) 8.75  D) 10  E) 8.28
(5 * 4)/2= 
<gadget id="calculator">(5 * 4)/2</gadget>
<output>10</output>
10   Answer:10
<result>D</result>
The area of a sector of a circle of radius 5 cm formed by an arc of length 4 cm is?