Question

if the angles of a quadrilateral are 4x,3x+10,2x+10 and 4x+15 find x and all angles​

Answer 1

let the angles be 4x, 3x + 10°, 2x + 10° and 4x + 15

so, 4x + 3x + 10 +2x + 10 + 4x + 15 = 360 [ quadrilateral sum 360]

13x + 35 = 360

13x = 360 -35 = 325

x = 325/13 = 25

s0 4x = 4 * 25 = 100

3x + 10 = 3 * 25 +10 = 85

2x + 10 =2 * 25 + 10 = 60

4x + 15 = 4 * 25 + 15 = 115

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Answer 2

Answer:

the quadrilateral total angel is=360

4x+3x+10+2x+10+4x+15=360

13x=360-35

13x=325

x=25

hence all angle

1) 4*25=100

2)3*25+10=85

3) 2*25+10=60

4)4*25+15=115