# coordinate geometry

## the defination of geometry

in classical mathematics,analytic geometry, also know as coordinate geometry

or Cartesian geometry is the study of geometry using a coordinate system. this

contrasts synthetic geometry.

cite

## information

Rene Descartes applied algebraic principles to geometric situations also refered to as analytic geometry coordinate geometry proofs employ the use of formulas such as the distance formula the slope formula

Cite

notes

## example

Problem

abc with A (0,0), B (2,3),and C (4,0)

Formula

used distance

show ur work

**The triangle** **is isosceles because it has two congruent sides**

**cite **

## When developing a coordinate geometry proof:

1. draw and label the graph

2. state the formulas you will be using

3. show ALL work (if you are using your graphing

calculator, be sure to show your screen displays as

part of your work.)

4. have a concluding sentence stating

what you have proven and why it is true.