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## anonymous one year ago Find the length of the unknown side. Round your answer to the nearest whole number. Image of a right triangle with legs labeled 7 meters each. The hypotenuse is unknown. 7 meters 9 meters 10 meters 12 meters

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1. anonymous

If the legs are equal, then it is a 45-45-90 triangle. And for a 45-45-90 triangle, the hypotenuse will be $\large H~=~Leg\sqrt{2}$

2. anonymous

I still don't get it

3. anonymous

Do you know how to substitute values into a formula?

4. anonymous

no sir

5. anonymous

Just plug "7" in as the leg. Multiplying 7 by $$\sqrt{2}$$ will get you the hypotenuse.

6. anonymous

ok I got 1.414213562373095

7. anonymous

Ok, so $\large 7 \times 1.4142$

8. anonymous

9.8994

9. anonymous

So which number would you round 9.9 to?

10. anonymous

10.0

11. anonymous

Right! So it would be 10 as your answer :)

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