Question

Por favor necesito ayuda ​

Answer 1

Explicación paso a paso:

a² + b² = c²

a² + 12² = 15²

a² + 144 = 225

a² = 81

a = 9

Razones trigonométricas :

SenA = 9/15 = 3/5

CosA = 12/15 = 4/5

TgA = 9/12 = 3/4

SenB = 12/15 = 4/5

CosB = 9/15 = 3/5

TgB = 12/9 = 4/3