 # Warm-up Write the following formulas 1.Distance 2.Midpoint What is the Pythagorean Theorem?

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Warm-up Write the following formulas 1.Distance 2.Midpoint What is the Pythagorean Theorem?

Ch. 4.7 Coordinate Geometry Students will place geometric figures in a coordinate plane and write a coordinate proof.

Example 1: A right triangle has legs of 6 and 8 units. Place the triangle in a coordinate plane. Label the coordinates of the vertices and find the length of the hypotenuse.

Cool Down A right isosceles triangle has legs measuring n units. Find the length of the hypotenuse.

Warm Up 1. 2.

Example 2: In the diagram,. Find the coordinates of point B. A B.B. C D

Given: Coordinates of figure ABCD Prove: A(0, 0) B(a, b) C(3a, 0) D(2a, -b)

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