Question

Teorema de tales encontre o valor de X

Answer 1

Explicação passo-a-passo:

4 ÷ 12 = x ÷ 21

12x = 4:• 21

12x = 84

x = 84 / 12

x = 7

Answer 2

$\large \boxed{ \begin{array}{l} \rm \dfrac{4}{12} = \dfrac{x}{21} \\ \\ \rm \: 12x = 21 \times 4 \\ \rm \: 12x \: = \:84 \\ \rm \: x = 84/12 \\ \boxed{ \rm x = 7} \end{array}}$