Answer:
The width is 5.5cm.
The length is 33cm.
Explanation:
Since the length is 6 times the width,
(l represents the length and w represents the width.)
Perimeter = Length + Length + Width + Width =

Since the perimeter is 77cm,

Divide both sides by 14:


The width is 5.5cm.
We know that the length is 6 times the width,
so the length =
.
The length is 33cm.