For the school banner we have:
Where,
w: width of the banner
l: length of the banner
Substituting values we have:
Clearing the width we have:
Then, for the cheerleaders we have:
The ratio of measures is:
Therefore, the width is given by:
Then, the perimeter is given by:
Substituting values we have
The area is given by:
Substituting values we have
Answer:
Its perimeter and its area are:
P = 39 inches
A = 93.5 square inches