Question

AYUDA ES URGENTEEEEE

Answer 1

$\sin( \alpha ) = \frac{ab}{cb} \\ \sin( \beta ) = \frac{ac}{cb} \\ \cos( \alpha ) = \frac{ac}{cb} \\ \cos( \beta ) = \frac{ab}{cb } \\ \tan( \alpha ) = \frac{ab}{ac} \\ \tan( \beta ) = \frac{ac}{ab}$
1)
$x = \sqrt{ {7}^{2} + 10 {}^{2} } \\ x = \sqrt{149} \\ x = 12.21$
2)
$x = \sqrt{ {11}^{2} - {9}^{2} } \\ x = \sqrt{40} \\ x = 6.32$
3) Es un cuadrado, así que:
$10 = \sqrt{ {x}^{2} + {x}^{2} } \\ 10 = \sqrt{2 {x}^{2} } \\ 100 = 2 {x}^{2} \\ 50 = {x}^{2} \\ x = \sqrt{50} \\ x = 7.07$