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Try this ACT math practice question on the topics of right triangles, algebraic translation and manipulation.

The perimeter of a right triangle is $18$ inches, and one of the legs of the triangle is $6$ inches long. How many inches longer is the hypotenuse than the length of the shortest leg ?

- $\quad 1.5$
- $\quad 2$
- $\quad 3$
- $\quad 3.5$
- $\quad 4$

**Video explanation**