Question

http://prntscr.com/d933di

Answer 1

Plot and use determinant to find the area.
Do you know how to do it?

Answer 2

@Gokuporter Alrigt, this seems simple enough. First it depends on whether you want to plot the coordinates or not. In my opinion that would make the whole thing easier

Answer 3

I plotted them

Answer 4

@gunsodo
The perimeter is required, not the area.

Answer 5

@Gokuporter
Your plot of the vertices allow you to check if they are presented in order. So that's the first thing you need to do.

Next, you need to calculate the distance between adjacent vertices ABCDE and add them together to get the perimeter.

The distance, D, between two vertices \(V_1(x_1,y_1),~V_2(x_2,y_2)\):
\(\bbox [10pt, lightgrey, border:5pt solid green]{\large D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}\)

For your information, there are 5 vertices, so there will be 5 sides: AB,BC,CD,DE,and \(\color{blue}{EA}\).

Answer 6

Oh, sorry @Gokuporter and thanks @mathmate