Question

A) calcule o seno do ângulo B

B) calcule o cosseno do ângulo B ​

C) calcule a tangente do ângulo B

Answer 1

a) sin(B) = 12/15 = 4/5

b) cos(B) = 9/15 = 3/5

c) tg(B) = 12/9 = 4/3