Question

calcule o valor de x usando lei dos senos.​

Answer 1

Explicação passo-a-passo:

${x\over sen45^{\circ}}={10\over sen30^{\circ}}\\ \\ {x\over{\sqrt{2\over2}}}={10\over{1\over2}}\\ \\ {1\over2}.x=\not10^5.{\sqrt{2} \over\not2}}\\ \\ {1\over2.}.x=5\sqrt{2} \\ \\ x={5\sqrt{2} :{1\over2}}\\ \\ x=5\sqrt{2} \times2\\ \\ x=10\sqrt{2}$