Question

O valor de x na figura ao lado é:
a) ( ) x = 12m
b) ( ) x = 15m
c) ( ) x = 16m
d) ( ) x = 20m
e) ( ) x = 21m

Answer 1

Olá Esther

sen(30) = x/30

1/2 = x/30

2x = 30

x = 30/2 = 15 m (B)

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