The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle? Choose the correct choice from the following choices.
A) 432 sq m B) 356 sq m C) 300 sq m D) 428 sq m E) 525 sq m
2(3x + x) = 80   l = 30 b = 10   lb = 30 * 10= 
<gadget id="calculator">30 * 10</gadget>
<output>300</output>
300   ANSWER:300 sq m
<result>C</result>
The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle?