answer the 5 question
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Let the first angle be a
Second angle = a+10
Third angle = a+20
Fourth angle = a +30
By angle sum property of quadrilateral
=> a+a+10+a+20+a+30 = 360
=> 4a + 60 = 360
=> 4a = 300
=> a = 75
First angle = 75°
Second angle = 85°
Third angle = 95°
Fourth angle = 105°
Second angle = a+10
Third angle = a+20
Fourth angle = a +30
By angle sum property of quadrilateral
=> a+a+10+a+20+a+30 = 360
=> 4a + 60 = 360
=> 4a = 300
=> a = 75
First angle = 75°
Second angle = 85°
Third angle = 95°
Fourth angle = 105°
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