PLEASE HELP! A square piece of paper 144 mm on a side is folded in half along a diagonal. The result is a 45 -45-90 triangle. What is the length of the hypotenuse
A:140 mm
B:12 square root 2
C:280mm
D: 140 square root 2

Your answer is B. First, since we know that both legs are equal, we can figure out their lengths by finding the square root of 144 and that is 12. To find the hypotenuse, we multiply length by the square root of two. Being as your choices had that was part of one of your options, it would be logical to conclude that B is the correct answer.

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PLEASE HELP! A square piece of paper 144 mm on a side is folded in half along a diagonal. The result is a 45 -45-90 triangle. What is the length of the hypotenuse A:140 mm B:12 square root 2 C:280mm D: 140 square root 2

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PLEASE HELP! A square piece of paper 144 mm on a side is folded in half along a diagonal. The result is a 45 -45-90 triangle. What is the length of the hypotenuse
A:140 mm
B:12 square root 2
C:280mm
D: 140 square root 2