Question

What is the value of k?
k = 28
k = 29
k = 31
k = 42

Answer 1

The answer is B, k= 29

Explanation:

Answer 2

we know that

`(5k-3)\°+(9+k)\°=180\°` -------> by supplementary angles

Solve for k

Combine like terms in the left side

`6k+6=180`

Substract
`6` both sides

`6k=180-6`

Divide by
`6` both sides

`k=174/6=29\°`

therefore

the answer is the option

`k=29\°`