Question

Qual o valor de x ???????

Answer 1

Nessa atividade,usaremos Teorema de tales

Fazemos:

$\Large\blue{\sf \dfrac{4}{12}=\dfrac{X}{21}}$

Calculamos:

$\Large\red{\boxed{\orange{\boxed{\blue{\begin{array}{l} \tt 12X=4\cdot21 \\ \\ \tt 12X=84 \\ \\ \tt X=\dfrac{84}{12} \\ \\ \tt X=7 \end{array}}}}}}$

Temos a Resposta:

$\LARGE\blue{\boxed{\bf7 }}\Longleftarrow$

$\Large{\text{\rm Bons\:estudos}}$

$\bf\large{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \quad }}\LaTeX$✍

$\sf(\purple{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})$