Subtracting a positive is the same thing as adding a negative. Subtracting a negative is the same as adding a positive. Sometimes it's a little easier to do it that way.
Answer:
3.3 m
Step-by-step explanation:
The formula used to solve for leg a of a right triangle is a= sqrt(c^2-b^2). This is replaced by sqrt(6^2-5^2) for your equation. If you work this out, it equals about 3.32, and you have to round it to the nearest tenth, so the answer is 3.3 m.