In general, no. But in special cases it can be.
Some are, some are not. The pentagon can be regular, or not.
they are always symmetical
Something that is symmetrical is the same on both sides
any triangle is a triangle
A symmetical line is a line that divides a figure into parts that are equal. Take for example a simple circle. The symmetrical line will cut that circle in half to give two equal pieces. Keep in mind there can be more than one of these lines
If a triangle is obtuse, the orthocenter of the triangle actually lies outside of the triangle. If the triangle is acute, the orthocenter of the triangle lies on the inside of the triangle
Yes, a scalene triangle can be a triangle.
A triangle can be constructed into any of the given formats.
acute angled triangle,right angled triangle,obtuse angled triangle,isosceles triangle,equilateral triangle, scalene triangle
A scalene triangle, an equilateral triangle, an isosceles triangle and a right-angle triangle, acute-angled triangle, obtuse-angled triangle
A triangle.
a triangle in a triangle