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26-10-2018
Mathematics

contestada

Find the lenght of the hypontenuse of a right triangle with legs of 9 cm and 12 cm.
(a) 8 cm
(b) 21 cm
(c) 15 cm
(d) 225 cm

Respuesta :

26-10-2018

Answer:

The length of the hypotenuse is C. 15.

Step-by-step explanation:

Use the Pythagorean theorem. a^2 + b^2 = c^2

9^2 = 81

12^2 = 144

81 + 144 = 225

The square root of 225 is 15; 15^2.

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