Respuesta :

sum of angles in a quadrilateral = 360

to find out the unknown angle in the quadrilateral,
360-105-130-70 = 55

as angles on a straight line = 180,
180-55=125

ans : 125 ( B )

Answer:

b. 125 degrees

Step-by-step explanation:

Quadrilaterals have a total of 360 degrees

105 + 130 + 70 + w = 360 <-- plug in numbers

305 + w = 360 <-- subtract 205 from both sides

w = 55 <-- angle measure of w

Straight lines have a angle of 180 degrees

180 - 55 = 125

z = 125

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