Question

ayuda por favor es para ahorita. Doy . Si no saben no respondan xfavor.​

Answer 1

11.

$\alpha + \beta + x = 180$

$\alpha + \beta = 180 - x$

...

$\alpha + \beta = 100$

180-x=100

180-100=x

80=x

12.

100=180-x+36

x=216-100

x=116

13.

$x + 3 \beta + \beta = 180 \\ x = 180 - 4 \beta \: \: \: \: \: \: \:$

...

$180 - 4 \beta + \beta + 63 = 180 \\ 3 \beta = 63 \\ \beta = 21$

...

$x = 180 - 4 \beta \\ x = 180 - 4(21) \\ x = 180 - 84 \\ x = 96$