## coordinate geometry get points on perimeter and point within

Geometric formulae, word problems, theorems and proofs, etc.

### coordinate geometry get points on perimeter and point within

i need to know the formula to get the coordinates that are on the perimeter and within the shape of square and rectangle. does anyone know that?

lets say square coordinates of (1,1) , (1,3) , (3,3) , (3,1)

points on perimeter would be (1,2) , (2,1) , (2,3) , (3,2) excluding the actual coordinates above.

points within shape would be (2,2)
zxcvbnm123

Posts: 2
Joined: Wed May 08, 2013 3:40 pm

### Re: coordinate geometry get points on perimeter and point wi

zxcvbnm123 wrote:i need to know the formula to get the coordinates that are on the perimeter and within the shape of square and rectangle. does anyone know that?

lets say square coordinates of (1,1) , (1,3) , (3,3) , (3,1)

points on perimeter would be (1,2) , (2,1) , (2,3) , (3,2) excluding the actual coordinates above.

points within shape would be (2,2)

You would write each of the four lines and choose restrictions to establish each segment. You would then use any line to find a point on the perimeter and you would use inequalities based on the four lines for interior points. No one particular formula. At this level of study you use graphical and symbolic techniques. Any two points form a line; but you do not specifically form a line using the diagonals of the figure. You would use lines based on only (1,1) & (1,3); (1, 3) & (3, 3); and (3,3) & (3, 1); and (3,1) & (1,1).
jg.allinsymbols

Posts: 75
Joined: Sat Dec 29, 2012 2:42 am

zxcvbnm123 wrote:i need to know the formula to get the coordinates that are on the perimeter and within the shape of square and rectangle.

There are infinitely many points on and in the rectangle. Are you supposed to do some sort of listing, or are you asked to provide inequalities and line equations?

Quoting the exact text of the instructions would probably be helpful. Thank you!

stapel_eliz

Posts: 1797
Joined: Mon Dec 08, 2008 4:22 pm

### Re: coordinate geometry get points on perimeter and point wi

dont get what you mean. all shapes will be directly on the exact point. no decimal coordinates. and shapes will be align properly towards x and y axis
zxcvbnm123

Posts: 2
Joined: Wed May 08, 2013 3:40 pm