The hypotenuse is: about 12.81
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8.6cm
The hypotenuse of a right triangle with legs of 8 and 15 centimeters is the square root of (8 squared plus 15 squared), which is 17.
Using Pythagoras' theorem for a right angle triangle the hypotenuse works out as the square root of 72 which is about 8.485 units to 3 decimal places
32 +82 =9+64=73 So the hypotenuse is of length square root of 73
The hypotenuse is 10 yards long.