# CCSS IP Math I 1.1.2 Example 2

- Topic:
- Perimeter

To calculate the perimeter of an isosceles triangle, the expression 2

*s*+*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?## New Resources

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