Question

fold a 3 inch by 5 inch index card on one of its dagonals. use Pythagorean

Answer 1

The diagonal of the right triangle is  √34 inches.

How to use Pythagoras theorem?

The card are to be folded to form an hypotenuse side.

Using Pythagoras's theorem,

c²= a² + b²

where

• a and b are the two legs
• c is the hypotenuse side

The hypotenuse side is the longest side of the right triangle.

Therefore,

c² = 3² + 5²

c² = 9 + 25

c² = 34

square root both side

√c² = √34

c = √34

Therefore, the diagonal is  √34 inches.

learn more on Pythagoras theorem here: https://brainly.com/question/10884857

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