Question

An envelope is 6 inches wide, and it measures 9 inches along the diagonal. How tall is the envelope? If necessary, round to the nearest tenth.

Answer 1

Aprox: 6.7

Explanation:

Polygatheroem method.

`a^(2) + b^2 = c^2\\a^2 + 6^2=9^2`

a=6.7

Answer 2

Wouldn't it be 6×9=54 ?

Explanation:

Because you would do L×W ? I think.. if that's wrong I am super duper sorry!!