Example 2

To calculate the perimeter of an isosceles triangle, the expression 2s + b is used, where s represents the length of the two congruent sides and b represents the length of the base. What effect, if any, does increasing the length of the congruent sides have on the expression?
  1. Refer to the expression given: 2s + b.
  2. Determine what effect, if any, increasing the length has.
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