Question

Alguem me explica como fazer isso

Answer 1

Resposta:

a) BC²=3²+4²=9+16 => BC =√25=5

b) senB= CO/HIP=3/5

c) cosB= CA/HIP=4/5

d) tgB=senB/cosB=(3/5) / (4/5)= 3/4

e) senC=CO/HIP=4/5

f) cosC=CA/HIP=3/5

g) tgC=senC/cosB=(4/5) / (3/5) =4/3

CO =Cateto Oposto

CA = Cateto Adjacente

HIP = Hipotenusa