Question

calcule o seno cosseno e a tangente de b

Answer 1

Altura do triângulo.

h²=12²-8²

h²=144-64

h²=80

h=√80

h=4√5

h=8.tgβ

tgβ=4√5/8

tgβ=√5/2

h=12.senβ

senβ=h/12

senβ=4√5/12

senβ=√5/3