Question

the legs of a right angle triangle are 9 cm and 12 cm what is the measurement of its hypotenuse

Answer 1

${x}^{2} = {9}^{2} + {12}^{2} \\ {x}^{2} = 81 + 144 \\ {x}^{2} = 225 \\ {x}^{2} = {15}^{2} \\ x = 15$
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Answer 2

this question is answered