Math, asked by dolllll, 1 year ago

plz answer 3rd and also explain

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Answered by leelu27

1

Step-by-step explanation:

90+75+9x+4+14x+7=360(sum of all angles in a quadrilateral is 360 degree)
90+75+11+23x=360
176+23x=360
23x=360-176
23x=184
X=8

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