Question

If angles of a quadrilateral are x, x+3, x+8,x+9, then find the value
of x.​

Answer 1

Answer:  HI

Step-by-step explanation: ANSWER

SO WE KNOW THAT THE SUM OF A QUADRILATERAL IS 360

SO WE WILL PLUS ALL THE ANGLES AND FIND THE VALUE OF X

X+X+3+X+8+X+9 = 360

X+X+X+X+3+8+9 =360

4X + 20 = 360

4X = 360 -20

4X = 340

X = 340 /4

X = 85

FOR CHECKING

PLUS ALL THE ANGLES AND THEIR SUM SHOULD BE 360

X = 85

X+3 = 85 = 3 = 88

X+8 = 85 +8 = 93

X+9 = 85 +9 = 94

HOPE IT HELPS !