Posted by **Jerald** on Friday, October 18, 2013 at 7:37pm.

3. The ratio of the altitude of a triangle to the length of its base is 5:12. Calculate the altitude if the length of the base is 42mm.

17.5

length/base= 5/12=x/42= 17.5

- Math (Proportions) -
**Ms. Sue**, Friday, October 18, 2013 at 7:44pm
Right.

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