b representa o comprimento do cateto oposto.

b representa o comprimento do cateto adjacente.

a representa o comprimento do cateto oposto.

a representa o comprimento do cateto adjacente.

$$\sin\alpha=\frac{6}{4}$$

$$\cos\alpha=\frac{6}{7,2}$$

$$\tan\alpha=\frac{3}{2}$$

$$\tan\alpha=\frac{2}{3}$$

$$\sin\alpha=\frac{3,6}{4,7}$$

$$\cos\alpha=\frac{3}{3,6}$$

$$\sin\beta=\frac{3,6}{4,7}$$

$$\cos\beta=\frac{3}{4,7}$$

$$2,5\times\sin30\degree+2$$

$$\frac{2,5}{\sin30º}+2$$

$$2,5\times\tan30\degree+2$$

$$\frac{2,5}{\tan30\degree}+2$$