Question

the measure of a three quadrilateral is 30°,70°,100°.find out the measurement of fourth angle?​

Answer 1

Answer:

160 degrees

Step-by-step explanation:

we know that the sum of angles in a quadrilateral is 360 degrees

let the fourth angle be x

   so, 30+70+100+x=360

       200+x=360

        x= 360-200

         x= 160 degrees