The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle?  Answers.
A) 360
B) 376
C) 299
D) 276
E) 111
2(3x + x) = 80   l = 36 b = 10   lb = 36 * 10= 
<gadget id="calculator">36 * 10</gadget>
<output>360</output>
360   360
<result>A</result>
The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle?