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
In Ontario, children aged 6 - 18 must attend school. The Education Act is the law that governs public schools in Ontario. It says that children aged 6-18 must attend school.Many children can begin full day kindergarten program at age 4. Elementary schools provide full day kindergarten programs for children aged 4 and 5. They also provide instruction from grades 1 - 8.econdary schools, often called  high schools , provide instruction from grades 9 - 12. Generally, students begin high school at 14 years of age and graduate at 18. Many community agencies can help you find information about school for your children.