Question

three angles of quadrilateral are x°(2x+13) (3x+10) (x-6) .then what is the value of x.

Answer 1

I hope it will helps you

Answer 2

Sum of angles in a quadrilateral is 180°

let

ABCD is a quadrilateral

A + B + C + D = 180°

x(2x+13) + (3x+10) + (x-6) + D = 180°

(2x+13x) + (3x+10) + (x-6) = 180°

{2x+13x+3x+x} + { 10 - 6 } = 180°

{ 19x } + { 4} = 180°

Remove brackets

19x + 4 = 180°

19x = 180 - 4

19x = 176

x = 176 / 19

X = 9.26 ~ 9.27