Question

only need #3's answer

1. What coordinates should point D have for the creation of a rectangle with vertices at A(-3,2) , B (2,2) , C (2, -1)?

2. Using the formulas for horizontal and vertical distance find the lengths of AB and BC.

3. Find the perimeter of rectangle ABCD from numbers 1 and 2.

Answer 1

What did you get for #1 and #2?

Answer 2

I got for #1 (-3,-1) and for #2 AB = 5

Answer 3

very good. Both are correct

Answer 4

yayyy!

Answer 5

you just need to find the other side lengths of the rectangle, then add up the four sides

Answer 6

ok, how do I find the other side lengths?

Answer 7

how did you determine that AB was 5 units long?

Answer 8

I did 1. https://www.desmos.com/calculator/arli5fmtmd
(-3,-1)
2.
AB = 5
BC = 3

Answer 9

so you counted out the squares? or did you use the distance formula?

Answer 10

counted the squares

Answer 11

so do the same for the other points

say from A to D, or from B to C

Answer 12

okay!

Answer 13

I got BC = 3

Answer 14

so we basically have this rectangle

Answer 15

yes?

Answer 16

now add up the four sides

Answer 17

okay, 5 times 2 + 3 times 2 = 16

Answer 18

yep 16 is the perimeter

Answer 19

Okay! Thank you!

Answer 20

no problem