Question

Me ajudem!!!
pra amanhã! !!!!

Answer 1

${a}^{2} = {b}^{2} + {c}^{2}$
a)
${ 15}^{2} = {x}^{2} + {12}^{2} \\ 225 = {x}^{2} + 144 \\ x = \sqrt{81} \\ x = 9$
b)
${10}^{2} = 2 {x}^{2} \\ 100 = 2 {x}^{2} \\ x = \sqrt{50} \\ x = 7.07$
c)
${14}^{2} = {5 \sqrt{3} }^{2} + {x}^{2} \\ 196 = 5.3 - {x}^{2} \\ x = \sqrt{181} \\ x = 13.4$