Respuesta :

this is a hexagon so total sum of angles should equal 720°

first find the missing angle inside the hexagon

720° - ( 75 + 130 + 125 + 115 + 145 )° = 130°

since angle y° is on a straight line, the missing angle and y° should equal 180°

180° - 130° = 50°

y = 50°

since this is a six sided figure the sum of the interior angles is 720

75+130+ 125+ x+115+145 = 720   ( x in the interior angle left in the polygon)

590+ x=720

x = 130

x+y = 180  it makes a straight line

130+ y = 180

y = 50


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