Of course, the main property of isosceles triangles is their two congruent sides. All isosceles triangles also have base angles that are congruent. Again, this property holds true for all isosceles triangles, no matter which direction their apex points.
In France, children start school at three years old (although it is not compulsory until six years old). A comparison between my daughter (educated in France) and her cousin (in the UK) at exactly 4 yrs 9 1/2 months old showed that a British education gives kids the tools they need to read and write much more quickly. Sarah, Apt, France
Education is compulsory in France from the ages of 6 to 16, but a large majority of children start school well before the minimum age, often as young as two years old, and over 50% of 18-21 year olds in France are still in full-time education, or else following a vocational training course.