Question

Qual o valor de x nos triângulos a seguir? *


11,5

14,4

13,5

12,4

Answer 1

$\large\boxed{\begin{array}{l}\sf\dfrac{36}{15}=\dfrac{x}{6}\\\\\sf 15x=216\\\\\sf x=\dfrac{216\div3}{15\div3}\\\\\sf x=\dfrac{72}{5}\\\\\sf x=14,4\\\boldsymbol{ Dividir~por~5~equivale}\\\boldsymbol{a~dobrar~o~n\acute umero~e~deslocar}\\\boldsymbol{uma~casa~decimal}\\\boldsymbol{para~a~esquerda.}\end{array}}$