Question

Find the Length of AC for rectangle ABCD.

Answer 1

12.2 units

Explanation:

`7^(2) + 10^(2) =AC^(2) \\49+100\\149=AC^(2) \\√(149) =\sqrt{AC^(2) } \\√(149) =AC\\12.2=AC`

in the fourth step, the square and square root will cancel out for AC