An envelope is classified as a large envelope if the length exceeds 11.5 inches . What is the length of the envelope shown? Round to the nearest tenth

12.6

Step-by-step explanation:

Pythagorean theorem;

The diagonal in the rectangle creates two right triangles, with a hypotenuse length of 14 inches. One of the side lengths of this right triangle is 6 inches.

Using the Pythagorean =Theorem, you can use the formula 14^2-6^2= 160.

the square root of 160 is 12.64911064. Round to nearest tenth

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