The angle of quadrilateral are respectively `100^@,98^@,92^@dot` Find the fourth angle.

Explanation

`"let the fourth angle be 'x'"`

`therefore "Sum of angles of a Quadrilateral=" 360^@`

`therefore 100^@+98^@+92^@+x=360^@`

`290^@+x= 360^@`

`x= 360^@-290^@`

`x= 70^@`

`therefore "the fourth angle is
" 70^@`