Question

What is the answer is it 56, 76, 128, or 100

Answer 1

The sum of the interior angles of any quadrilateral is 360°.

Therefore, we have,

`4n+5n+6+9n+2+8n-12=360`

SOlving for n, we get,

`\begin{gathered} 26n-4=360 \\ 26n=364 \\ n=14 \end{gathered}`

Therefore, the angle m
`4n=4*14=56`The answer is 56.