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
Elementary and secondary education. Education in Canada usually starts with kindergarten followed by grades 1 to 12. By law, children must go to school starting at the age of 5 or 6 and until they are between 16 and 18, depending on the province or territory. Students go from primary to secondary school between grades 6 and 8, depending on the province or territory. Students who successfully complete secondary school get a high school diploma. The school year usually begins at the end of August and finishes toward the end of June. Children go to school from Monday to Friday during the school year (except during holidays).