Utiliser les propriétés du parallélogramme Exercice

A

I

K

B

\(\displaystyle{\left[ AB \right]}\) et \(\displaystyle{\left[ CI \right]}\), ainsi que \(\displaystyle{\left[ BC \right]}\) et \(\displaystyle{\left[ AD \right]}\)

\(\displaystyle{\left[ AB \right]}\) et \(\displaystyle{\left[ CD \right]}\), ainsi que \(\displaystyle{\left[ BI \right]}\) et \(\displaystyle{\left[ AD \right]}\)

\(\displaystyle{\left[ AB \right]}\) et \(\displaystyle{\left[ CD \right]}\), ainsi que \(\displaystyle{\left[ BC \right]}\) et \(\displaystyle{\left[ AD \right]}\)

\(\displaystyle{\left[ AI \right]}\) et \(\displaystyle{\left[ CD \right]}\), ainsi que \(\displaystyle{\left[ BC \right]}\) et \(\displaystyle{\left[ AD \right]}\)

\(\displaystyle{CD = 12}\)

\(\displaystyle{CD = 9}\)

\(\displaystyle{AD = 8}\)

\(\displaystyle{AD = 6}\)