Question

3 - A medida do ângulo x na figura e: a) 30
b). 45
c) 60
d) 90°
e) n.d.a.
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Answer 1

Bom dia,

$Sen \ x = \dfrac{3}{6}\\\\Sen \ x = \dfrac{1}{2}\\ \\x = 30^{\circ}}$

Abraços!