The total number of degrees, D, in an n-sided polygon is given by the formula D=180(n-2). When Janelle solves for n, she gets n=D+360/180. Sophie solved the same equation for n and got an equivalent equation. Which of the following could be Sophie’s equation?


n=D/180 +2

n=D/180 -2

n=D-178

n=D-182

Respuesta :

The aim is to write n in one side of the equality:

 

1.D=180(n-2).

2. D=180n-360

3. D+360=180n

4. 180n=D+360

5. [tex]n= \frac{D+360}{180}= \frac{D}{180}+ \frac{360}{180}= \frac{D}{180}+ 2[/tex]

Answer:

n=D/180 +2

Step-by-step explanation: