Question

Determine o valor de X nas figurinhas abaixo:​

Answer 1

Explicação passo-a-passo:

a)

$\sf sen~30^{\circ}=\dfrac{cateto~oposto}{hipotenusa}$

$\sf \dfrac{1}{2}=\dfrac{x}{12}$

$\sf 2x=12\cdot1$

$\sf 2x=12$

$\sf x=\dfrac{12}{2}$

$\sf \red{x=6}$

b)

$\sf tg~30^{\circ}=\dfrac{cateto~oposto}{cateto~adjacente}$

$\sf \dfrac{\sqrt{3}}{3}=\dfrac{x}{30}$

$\sf 3x=30\sqrt{3}$

$\sf x=\dfrac{30\sqrt{3}}{3}$

$\sf \red{x=10\sqrt{3}}$