Using the Euler characteristic, it has (5+4) + 9 - 2 = 16 edges.
Regular polygons have congruent angles such as squares and equilateral triangles.
A rhombus, diamond, lozenge or an equilateral quadrilateral all have 4 congruent sides but are not squares.
Regular polygons such as squares and equilateral triangles
If you are talking about a triangle it has two. Squares have four.
No.
A equilateral triangle and a normal triangle.
None! If the angles are not congruent then the shapes are not similar of congruent. But that is not a problem. The angles of an equilateral triangle are not congruent to the angles of a square but that does not mean that you cannot work with equilateral triangles or squares!
Differences: Squares have 4 sides / equilateral triangles have 3 sides. Squares have 90 degree angles / equilateral triangles have 60 degree angles. Squares have 2 diagonals / equilateral triangles have none Similarities: All sides of the shape are congruent All angles of the shape are congruent
Regular polygons have congruent angles such as squares and equilateral triangles.
A rhombus, diamond, lozenge or an equilateral quadrilateral all have 4 congruent sides but are not squares.
Regular polygons such as squares and equilateral triangles
3 squares and 4 triangles will have 24 vertices. There will be 4 vertices for each of the 3 squares. Since there are 3 squares, that will be 12 vertices. There are 3 vertices for each of the 4 triangles. Since there are 4 triangles, that will be 12 vertices. 12+12=24.
If you are talking about a triangle it has two. Squares have four.
No.
An equilateral triangle is a triangle with three equal sides. An isosceles triangle is one with two equal sides. So yes, an equilateral triangle qualifies as being an isosceles triangle as well. This is quite similar to the relationship between squares and rectangles, where a square is always a rectangle, but a rectangle isn't necessarily a square.
Equilateral triangles
They are said to be regular polygons such as equilateral triangles, squares and other polygons that have congruent sides and equal congruent interior angles.