Question

help...

Answer 1

8.49?

Answer 2

Lets say the legs are x inches long
Now use the pythagoereom theorem to solve for x

x^2 +x^2= 12^2

Answer 3

so x^2+x^2=144

Answer 4

Yes. Now combine like terms on the left side

Answer 5

so 2x^2=144?

Answer 6

Yes. Now divide both sides by 2

Answer 7

x^2=72

Answer 8

Now square root both sides

Answer 9

I don't understand how to square root x^2

Answer 10

Sqrt of x^2 would just be x

Answer 11

ok and square root of 72 is 8.5

Answer 12

x^2 the square root of this x

The opposite of squaring is taking the square root of something

Answer 13

Yes. It's sqrt of 72 but I don't think you should round it to 8.5. It told you to leave it in radicals

Answer 14

Remember 72=36x2
And you know the sqrt of 36=6

So the sqrt of 72
Is 6sqrt2

Answer 15

so the answer is 6sqrt2?

Answer 16

Yes