Answer:
w > 7m
Step-by-step explanation:
let l is the length of rectangle and w is the width of rectangle,
Perimeter of rectangle is 2(l+w).
From the question statement, we observe that
l=3w
2(l+w)>56
Put l=3w in above inequality,
2(3w+w)>56
2(4w)>56
8w>56
Multiplying by 1/8 on both sides of equation we get
(1/8)8w>(1/8)56
w>7m
We get the conclusion that width must be greater than 7m.
