Translation - Frans-Engels - Résous le problème suivant. Calcule en écrivant...

Solve the following problem. As you make your calculations, write down all the necessary steps. Draw the symmetrical figure of the rectangle in relation to point O. What is the length of the segment? Draw in green the axes of symmetry and in red the center of symmetry.
Consider now the following coded figure. What can you say about its straight lines? 210 tons (including 186 tons of wood and 24 tons of bark)
Indicate the proportion of bark in each part of a tree.
Code the figure. Deduct that it is a parallelogram.
Develop then reduce the expression. Do not forget about writing conventions.