use the pythagoren thereom: square the hypotenuse (ex: c^2=2^2=4) divide by 2 because you know the lengths will be equal (ex: 4/2=2= the square is 2x2)
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Square the two sides then add them up and the square root of this sum gives the length of the hypotenuse
A hypotenuse is the longest side of a right angled triangle. The length of a hypotenuse can be found using the Pythagorean Theorem. This states that in a right angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. This means that to find the length of the hypotenuse, you need to know the lengths of the other two sides.
* To find the hypotenuse, take the square root of (a2 + b2). * To find either of the two shorter sides, take the square root of (c2 - b2)
The square of the hypotenuse minus the square of the leg you know will give you the square of the unknown leg.
Using Pythagoras' theorem the length of the hypotenuse is 10 feet which will be the length of the string needed