Question

Qual é a medida do ângulo x nos triângulos a seguir?





me ajudem pfv preciso muito e pra hj ​

Answer 1

a)

$\mathsf{x+70^{\circ}+40^{\circ}=180^{\circ}}\\\mathsf{x=180 ^{\circ} -110^{\circ}=70^{\circ}}$

b)

$\mathsf{x=75^{\circ}+30^{\circ}=105^{\circ}}$

c)

$\mathsf{x+35^{\circ}+90^{\circ}=180^\{circ}}\\\mathsf{x=180^{\circ}-125^{\circ}=55^{\circ}}$

d)

$\mathsf{2x+3x+x=180^{\circ}}\\\mathsf{6x=180^{\circ}}\\\mathsf{x=\dfrac{180^{\circ}}{6}=30^{\circ}}$

e)

$\mathsf{x+x+10^{\circ}=110^{\circ}}\\\mathsf{2x+10^{\circ}=110^{\circ}}\\\mathsf{2x=110^{\circ}] -10^{\circ}}$

$\mathsf{2x=100^{\circ}}\\\mathsf{x=\dfrac{100^{\circ}}{2}}\\\mathsf{x=50^{\circ}}$