Question

- Calcule x no triângulo abaixo:

Answer 1

Resposta:

Explicação passo-a-passo:

1 - 80+30- 180 = 70º

2- 9x + 45 = 180  ->  x= 15º     angulo em R= 75º   angulo em S= 60º

3 - x+10 + x+50 + x-30 = 180   3x = 150 -> x=50º       R=100º    S=60º  T=20º

Answer 2

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

1

$\large\boxed{\begin{array}{l}\rm \: x + 80\textdegree + 30\textdegree = 180\textdegree \\ \\ \rm \: x + 110\textdegree = 180\textdegree \\ \\ \rm \: x = 180\textdegree - 110\textdegree \\ \\ \boxed{ \boxed{ \rm{x = 70\textdegree}}} \checkmark\end{array}}$

2

$\large\boxed{\begin{array}{l}\rm \: 5x + 4x + 45\textdegree = 180\textdegree \\ \\ \rm \: 9x = 180\textdegree - 45\textdegree \\ \\ \rm \: 9x = 135\textdegree \\ \\ \rm \: x = \dfrac{135\textdegree}{9} \\ \\ \boxed{ \boxed{\rm{x = 15\textdegree}}} \checkmark\end{array}}$

3

$\large\boxed{\begin{array}{l} \rm \: x + 10\textdegree + x - 30\textdegree + x + 50\textdegree = 180\textdegree \\ \\ \rm \: 3x + 30\textdegree = 180\textdegree \\ \\ \rm \: 3x = 180\textdegree - 30\textdegree \\ \\ \rm \: 3x = 150\textdegree \\ \\ \rm \: x = \dfrac{150\textdegree}{3} \\ \\ \boxed{ \boxed{ \rm{x = 50\textdegree}}} \checkmark\end{array}}$