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The sum of the angle measures of a quadrilateral is 360 degree. Write and solve an equation to find the value of x.

The sum of the angle measures of a quadrilateral is 360 degree Write and solve an equation to find the value of x class=

Respuesta :

Answer: 115+85+60+x=360

x=100 degrees

Step-by-step explanation:

115+85+60+x=360==> 115, 85, 60, and x are all 4 angles in the quadrilateral

200+60+x=360

260+x=360

260-260+x=360-260

x=360-260

x=100 degrees

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