## Prepare a Presentation

## Work Time

# Prepare a Presentation

Select one of the equations from the card sort and solve the equation.

- Justify each step of your solution. One equation has been done for you as an example.
- Prepare a presentation that shows and justifies each step of your solution and explains how each step relates to the situation.

# Challenge Problem

An isosceles triangle has a perimeter of 12$\frac{1}{2}$ inches.

The length of the shortest side is 4 inches less than the length of one of the two equal sides.

- What are the lengths of the three sides of the triangle?
- Solve the problem by writing and solving an equation.