Question

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!

Answer 1

answer:

y = 114°    and   x = 120°

step-by-step explanation:

part A:

• one inner angle: 51°

• second inner angle: (180°-87°) = 93°

• third inner angle: (180°-30°) = 150°

• fourth, beside y angle: 360° - 150° - 93° - 51° = 66°

• then y = 180°  - 66°  = 114°

part B:

• there are 6 sides, so inner angle: (6-2)*180 = 720°

• 160° + 123° + 107° + 90° + x + x = 720°

• 2x + 480° = 720°

• 2x = 720° = 480°

• 2x = 240°

• x = 120°

Answer 2

#1

Let the angle beside y be x

$\\ \rm\hookrightarrow x+51+(180-87)+(180-30)=360$

$\\ \rm\hookrightarrow x+51+93+150=360$

$\\ \rm\hookrightarrow x+294=360$

$\\ \rm\hookrightarrow x=66$

• y=180-66=114°

#2

$\\ \rm\hookrightarrow 2x+123+107+160+90=720$

$\\ \rm\hookrightarrow 2x+480=720$

$\\ \rm\hookrightarrow 2x=240$

$\\ \rm\hookrightarrow x=120$