Question

nos triângulos , determine X e Y

Answer 1

a)  Sen 30 = x/30  => x = 15 
     Cos 30 = y/30  => y = 25,98

b) Cos 60 = x/15,6 => x = 7,8
    Sen 60 = y/15,6 => y = 13,4

c) Tan 45 = x/42 => x = 42
    Sen 45 = 42/y => y =  59,39