The world's largest mousetrap is
9 feet 10 inches long and 4 feet 5
inches wide. What is the perimeter of the mousetrap in feet and inches?

Use the formula for perimeter of
a rectangle and substitute.

P= 2l +2w
P=2(________)+ 2(________)
P= 19 feet, 8 inches + _______
P= _______ feet, _______ inches