The lengths of the legs of a right triangle are 12 cm and 16 cm. What is the length of the hypotenuse?A.56cmB.14cmC.28cmD.20cm

using Pythagoras theorem
let the hypotenuse be h
[tex] {h}^{2} = {12}^{2} + {16}^{2} \\ {h}^{2} = 144 + 256 \\ {h}^{2} = 400 \\ h = \sqrt{400} \\ h = 20cm[/tex]
the answer is D
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