Question

Need help plz help plz

Answer 1

`x = 11`

Explanation:

Given

The attached triangle

Required

Find x

The theorem that applies to this question is the theorem of external angles. And it translates to:

`11x +2 = 58 + 5x + 10`

Collect Like Terms

`11x -5x = 58 + 10-2`

`11x -5x = 66`

`6x = 66`

Divide through by 6

`(6x)/(6) = (66)/(6)`

`x = (66)/(6)`

`x = 11`