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Helpppppppppppppppppppp

Helpppppppppppppppppppp-example-1

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The answer is 4 cm.

You have got a right-angled triangle.

Use the Pythagorean theorem.
The most common triangle is 3 x 4 x 5.
So if the short side is 3, and the hypotenuse is 5, the long side HAS TO BE 4.
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User Bryan Kennedy
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