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Exercise 3: ABC is an isosceles triangle with vertex A. K is the orthogonal projection of A on (BC) and O is the midpoint of [AC]. N is the symmetric of K with respect to O. 1) Prove that AKCN is a rectangle. 2) Prove that ABKN is a parallelogram

Exercise 3: ABC is an isosceles triangle with vertex A. K is the orthogonal projection of A on (BC) and O is the midpoint of [AC]. N is the symmetric of K with respect to O. 1) Prove that AKCN is a rectangle. 2) Prove that ABKN is a parallelogram

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Exercise 3: ABC is an isosceles triangle with vertex A. K is the orthogonal projection of A on (BC) and O is the midpoint of [AC]. N is the symmetric ofK with respect to O. 1) Prove that AKCN is a rectangle. 2) Prove that ABKN is a parallelogram
Transcribed Image Text:Exercise 3: ABC is an isosceles triangle with vertex A. K is the orthogonal projection of A on (BC) and O is the midpoint of [AC]. N is the symmetric ofK with respect to O. 1) Prove that AKCN is a rectangle. 2) Prove that ABKN is a parallelogram
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