Question

$calcule \: o \: valor \: de \: x \\ \: nos \: trapézios \: abaixo$
calcule o valor de x nos trapézios​

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{x + 40\textdegree = 3x + 10\textdegree}$

$\mathsf{3x - x = 40\textdegree - 10\textdegree}$

$\mathsf{2x = 30\textdegree}$

$\mathsf{x = \dfrac{30\textdegree}{2}}$

$\boxed{\boxed{\mathsf{x = 15\textdegree}}}\leftarrow\textsf{letra A}$

$\mathsf{2x + 7\textdegree + 2x - 27\textdegree + 90\textdegree + 90\textdegree = 360\textdegree}$

$\mathsf{4x + 160\textdegree = 360\textdegree}$

$\mathsf{4x = 360\textdegree - 160\textdegree}$

$\mathsf{4x = 200\textdegree}$

$\mathsf{x = \dfrac{200\textdegree}{4}}$

$\boxed{\boxed{\mathsf{x = 50\textdegree}}}\leftarrow\textsf{letra B}$

Answer 2

Explicação passo-a-passo:

a) 3x+10=x+40

3x-x=40-10

2x=30

x=30/2

x=15⁰

b)2x+7+2x-27+90+90=360⁰

4x=360-90-90+27-7

4x=180+20

4x=200

x=200/4

x=50⁰