The length of rectangle is thrice its breadth and its perimeter is 56 m, find the area of the rectangle?  Answers
A) 432 B) 212 C) 252 D) 992 E) 147
2(3x + x) = 56   l = 21 b = 7   lb = 21* 7= 
<gadget id="calculator">21* 7</gadget>
<output>147</output>
147   Answer:147
<result>E</result>
The length of rectangle is thrice its breadth and its perimeter is 56 m, find the area of the rectangle?