Question

I need help on this question

Answer 1

Remember that the sum of the values of the interior angles in a four-sided shape is 360 degrees, given to us by the formula
`180(n - 2)`, where
`n` is the number of sides the shape has.

By this we can say:

`x + 92 + 47 + 82 = 360`

`x + 221 = 360`

`x = 139`

The value of our angle,
`x`, is 139 degrees.