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1. Given: DEF with D(-1,3), E (5,3) and F(2,-3) Show:ADEF is not an equilateral triangle.

1. Given: DEF with D(-1,3), E (5,3) and F(2,-3) Show:ADEF is not an equilateral triangle.

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.2: Length And Angle: The Dot Product
Problem 5AEXP
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A proof that uses figures on a coordinate plane to prove geometric properties. 239 - 240 Coordinate Proof B. Apply the key concepts of the distance formula including the midpoint formula, and the coordinate proof in answering Activity 8, entitled, "I Missed You, But Now I found You!"in Mathematics 10 Learner's Module on page 243. Use a separate sheet of paper for your answers. Activity 2 A. Direction: Write the coordinate proof to prove the following geometric properties. Use a separate sheet of paper for your answers. 1. Given: DEF with D(-1,3), E (5,3) and F(2,-3) Show:ADEF is not an equilateral triangle. 2. Given: A(3,3), B(6,-1),C(2,0),D(-3,-1),E(1,2),F(0,-2) Show: AABC ADEF 3. Triangle ABC has vertices A(2,1), B (4,5), and C(7,1). Calculate the perimeter of the triangle ABC. 3.
Transcribed Image Text:A proof that uses figures on a coordinate plane to prove geometric properties. 239 - 240 Coordinate Proof B. Apply the key concepts of the distance formula including the midpoint formula, and the coordinate proof in answering Activity 8, entitled, "I Missed You, But Now I found You!"in Mathematics 10 Learner's Module on page 243. Use a separate sheet of paper for your answers. Activity 2 A. Direction: Write the coordinate proof to prove the following geometric properties. Use a separate sheet of paper for your answers. 1. Given: DEF with D(-1,3), E (5,3) and F(2,-3) Show:ADEF is not an equilateral triangle. 2. Given: A(3,3), B(6,-1),C(2,0),D(-3,-1),E(1,2),F(0,-2) Show: AABC ADEF 3. Triangle ABC has vertices A(2,1), B (4,5), and C(7,1). Calculate the perimeter of the triangle ABC. 3.
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