Respuesta :

rachelpinto17
Since ABCD is a quadrilateral,
We know that sum of the interior angles of any quadrilateral =360
=>A+B+C+D=360
=>2x+90+x +3x=360
=>6x+90=360
=>6x=360-90
=>6x=270
=>x =270/6
=>x =45

Otras preguntas