Question

Nas figuras abaixo, determine o valor de X ​

Answer 1

olá !!!

$a)\\x+12+30=180\\x=180-12-30\\\huge\boxed{\boxed{\boxed{\boxed{\sf x=138 \ \checkmark }}}}\\\\\\\\30+x+x=180\\2x=180-30\\2x=150\\x=150/2\\\huge\boxed{\boxed{\boxed{\boxed{\sf x=75 \ \checkmark }}}}\\\\\\\huge\boxed{\boxed{\boxed{\boxed{\sf espero \ ter \ ajudado \ }}}}\\\\\\\huge\boxed{\boxed{\boxed{\boxed{\sf Att:Jovem \ Lendario}}}}$