A quadrilateral which has 4 sides
One more side.
A triangle for example has 3 vertices.
There is no such right triangle. You have defined the relationship between three sides of a triangle that does not have a 90 degree angle. In a right triangle the sum of the squares of the shorter sides equals the square of the longest side and 12 + 22 = 5 ; 42 = 16 it does not equal 5 The angles in a triangle with sides 1, 2, 4 units can be found by applying the cosine rule.
Triangle means 3 angles. No other shape exists and any three angle shape is a triangle
You are a triangle.
a quadrilateral such as a square, rhombus, or rectangle
triangle * * * * * A triangle is NOT a 3d shape! A cube.
A shape that has 3 more vertices than a triangle, which has 3 vertices, is a hexagon. A hexagon has a total of 6 vertices. This geometric figure can be regular, with all sides and angles equal, or irregular, with varying side lengths and angles.
An octagon.
hexagon
a square
A polygon with 2 more side than a triangle is a 5 sided pentagon.
One more side.
A triangle has three sides, so a hexagon (a shape with six sides) would have three more sides than a triangle.
A triangle for example has 3 vertices.
If (and only if) the length of each pair of sides is greater than the third side, then it is possible to make a triangle.
If two sides of a triangle have lengths of 5cm and 12cm, then the third side can have any length that's more than 7cm and less than 17cm. If the third side is 13cm, then the triangle is a right triangle.