Question

calcula cuanto mide la diagonal de un rectangulo cuya base mide 12cm y su altura mide 6cm menos que su diagonal

Answer 1

Explicación paso a paso:

${x}^{2} = ( {12)}^{2} + {y}^{2} \\ {x}^{2} = 144 + ( {x - 6)}^{2} \\ {x }^{2} = 144 + {x}^{2} - 2x + 36 \\ {x}^{2} - {x}^{2} + 2x = 180 \\ 2x = 180 \\ x = \frac{180}{2} = 90$