Եռանկյան անկյուններ. ամփոփում

$109^\circ + 23^\circ + 48^\circ = 180^\circ$109, degrees, plus, 23, degrees, plus, 48, degrees, equals, 180, degrees

$x^\circ + 42^\circ + 106^\circ = 180^\circ$x, degrees, plus, 42, degrees, plus, 106, degrees, equals, 180, degrees

$x^\circ = 180^\circ - 106^\circ - 42^\circ$x, degrees, equals, 180, degrees, minus, 106, degrees, minus, 42, degrees
$x = 32$x, equals, 32