Hi.-It's Margie and I have a Math Lab to do but I don't get this.If you can, please help.:

Use the Pythagorean Theorem to find the diagonal of the new room.
length=22
width=25
area=350

Is the area supposed to be 550 instead of 350? Area of a rectangle is length times width, which would be 22 * 25 = 550.

To find the diagonal:
a^2 + b^2 = c^2
22^2 + 25^2 = c^2
484 + 625 = c^2
1109 = c^2
Take the square root of 1109 to find c, which will be the diagonal.

I hope this helps and is what you were asking.