Question

give me correct answers I will give you brilliant mark,Thanks and I will follow also​

Answer 1

Answer:

let angles of a quadrilateral =2x, 4x, 5x, 7x

2x+4x+5x+7x=360(angle sum property)

18x=360

x=20°

so angles are=40, 80, 100, 140

Answer 2

Answer:

sum of all angles of quardrilateral=360°

let the common factor = x

ratio =2:4:5:7

first angle = 2x

second = 4 x

third =5x

fourth=7x

according to the question

2x+4x+5x+7x=360°

18x=360°

x=360/18=20°

first angle = 2*20 =40°

second =4*20=80°

third= 5*20 =100°

fourth =7*20 =140°

hope it will help u...