Section 7.1 Homework Hints
For Problems 37 and 38, the formula for the perimeter of a rectangle is the sum of twice the length and twice the width.
For Problmes 39 and 40, the formula for the perimeter, P, of an equilateral triangle with side of length s is P = 3s.
See Example 2.
Note: Homework Hints are given only for the levels 1 and 2 problems.