Question

Determine o valor de x no triângulo abaixo;
a) 5√2 cm b) 5 cm c) 10 cm d) 20 cm e) 14 cm

Answer 1

sen45 = x/10√2

x = 10√2. sen45

x = 10√2. √2/2

x = 10√4/2

x = 20/2

x = 10 cm