Respostas

2014-02-03T14:48:10-02:00
Pela Lei dos Senos temos:

A / sen30 = B / sen60

A / 0,5 = 5V3 / V3/2

A / 0,5 = 10

A = 5 (Cateto Oposto a alpha)

*************************************

Cos α = CA / hip
V3/2 = 5V3 / hip

Hipotenusa = C = 5V3/V3/2 = 10
**************************************

Tg α = CO / CA
Tg α = 5 / 5V3 = 1/V3 = 1/V3 * V3/V3 = V3/3
******************************************************


O Triangulo ABC tem lados A=5 B=5V3 e C=10
********************************************************

1 1 1