Alfredo's triangles information

Equilateral Triangle Three equal sides Three equal angles, always 60°

Isosceles Triangle Two equal sides Two equal angles

Scalene Triangle

No equal sides
No equal angles

Triangle- Kayla 6/11/13

Triangle  {trahy-ang-guhl}

A basic shape that has 3 sides



Categories:
- isoceles right
- scalene
- isoceles
- right
- equilateral

triangles jasleen 5L

A triangle is one of the basic shapes in geometry: a polygon with three corners or vertices and three sides or edges which are line segments. A triangle with vertices A, B, and C.
Triangles can be classified according to the relative lengths of their sides:

• In an equilateral triangle  all sides have the same length. An equilateral triangle is also a regular polygon with all angles measuring 60°.
• In an isosceles triangle, two sides are equal in length. An isosceles triangle also has two angles of the same measure; namely, the angles opposite to the two sides of the same length; this fact is the content of the isosceles triangle theorem, which was known by Euclid. Some mathematicians define an isosceles triangle to have exactly two equal sides, whereas others define an isosceles triangle as one with at least two equal sides^. The latter definition would make all equilateral triangles isosceles triangles. The 45–45–90 Right Triangle, which appears in the Tetrakis square tiling, is isosceles.
• In a scalene triangle, all sides are unequal, and equivalently all angles are unequal. Right triangles are scalene if and only if not isoscel

no name very informatife

Triangles can be classified according to the relative lengths of their sides:

• In an equilateral triangle all sides have the same length. An equilateral triangle is also a regular polygon with all angles measuring 60°.^[1]
• In an isosceles triangle, two sides are equal in length.^{[note 1][2]} An isosceles triangle also has two angles of the same measure; namely, the angles opposite to the two sides of the same length; this fact is the content of the isosceles triangle theorem, which was known by Euclid. Some mathematicians define an isosceles triangle to have exactly two equal sides, whereas others define an isosceles triangle as one with at least two equal sides.^[2] The latter definition would make all equilateral triangles isosceles triangles. The 45–45–90 Right Triangle, which appears in the Tetrakis square tiling, is isosceles.
• In a scalene triangle, all sides are unequal,^[3] and equivalently all angles are unequal. Right triangles are scalene if and only if not isosceles.

Equilateral	Isosceles	Scalene

In diagrams representing triangles (and other geometric figures), "tick" marks along the sides are used to denote sides of equal lengths – the equilateral triangle has tick marks on all 3 sides, the isosceles on 2 sides. The scalene has single, double, and triple tick marks, indicating that no sides are equal. Similarly, arcs on the inside of the vertices are used to indicate equal angles. The equilateral triangle indicates all 3 angles are equal; the isosceles shows 2 identical angles. The scalene indicates by 1, 2, and 3 arcs that no angles are equal.

By internal angles[edit]

Triangles can also be classified according to their internal angles, measured here in degrees.

• A right triangle (or right-angled triangle, formerly called arectangled triangle) has one of its interior angles measuring 90° (aright angle). The side opposite to the right angle is the hypotenuse; it is the longest side of the right triangle. The other two sides are called the legs or catheti^[4] (singular: cathetus) of the triangle. Right triangles obey the Pythagorean theorem: the sum of the squares of the lengths of the two legs is equal to the square of the length of the hypotenuse:a² + b² = c², where a and b are the lengths of the legs and c is the length of the hypotenuse. Special right triangles are right triangles with additional properties that make calculations involving them easier. One of the two most famous is the 3–4–5 right triangle, where 3² + 4² = 5². In this situation, 3, 4, and 5 are a Pythagorean Triple. The other one is an isosceles triangle that has 2 angles that each measure 45 degrees.
• Triangles that do not have an angle that measures 90° are calledoblique triangles.
• A triangle that has all interior angles measuring less than 90° is anacute triangle or acute-angled triangle. If the greatest side length is c, then a² + b² > c².
• A triangle that has one interior angle that measures more than 90° is an obtuse triangle or obtuse-angled triangle. If the greatest side length is c, then a² + b² < c².
• A "triangle" with an interior angle of 180° (and collinear vertices) isdegenerate.
• A right degenerate triangle has collinear vertices, two of which are coincident.

A triangle that has two angles with the same measure also has two sides with the same length, and therefore it is an isosceles triangle. It follows that in a triangle where all angles have the same measure, all three sides have the same length, and such a triangle is therefore equilateral.

triangles keanu

tri-angles

	A triangle has three sides and three angles
	The three angles always add to 180

               

                                     There can be 3 2 or no equal sides.

                               

	Equilateral Triangle Three equal sides Three equal angles, always 60°
	Isosceles Triangle Two equal sides Two equal angles
	Scalene Triangle No equal sides No equal angles

                

                                And the three types of angles can be put to show what type of angle it creates

Gavrilo Unit 3 Week 1 ~H~W

*. A triangle is a closed figure with three sides.
*2. There are three types of triangles.

*A. Equilateral triangle

it has all three sides and the length is all the same with the others just like square they all have the same length.
*B. isosceles triangle

it has two sides that all the same length.
*C. Scalene triangle

it is one that have no sides and the length is different length and the shape is a bit weird to.

Triangles -Frederik-

                                                                      TRIANGLES

A triangle is a closed figure with three sides

There are various types of triangles such as:

* Equilateral triangle
   it has all three sides that are equal length, and consequently all three interior angles are equal size also.

* Isosceles triangle
   it has two sides that are the same length and the other side a different          length.

* Scalene triangle
   it is one that has no sides that are of equal length.

* Right triangle
   it has exactly one angle that is 90 degree.

* Obtuse triangle
   it is a triangle where one (and only one) angle is an obtuse angle (its greater than 90 degree)

* Acute triangle
   it is a triangle where all of the angles are acute angels.  

triangles yuka 6 nov' 13

A triangle is one of the basicshapes in geometry: apolygon with three corners orvertices and three sides or edges which are line segments. A triangle with vertices A, B, and C is denoted .

In Euclidean geometry any three points, when non-collinear, determine a unique triangle and a unique plane(i.e. a two-dimensionalEuclidean space).

Triangle Yvonne

Triangle ( geometry)introduction triangle (geometry),geometry  figure consisting of three points,called vertices,connected by three sides.in Euclidean plane geometry,the sides are straight line.All triangles have 3 sides and 3 angles which always add up to 180.the Triangle inequality theorem state that:any side of triangle must be:less than the sum of the 2 sides and greater than the difference of the other 2 sides.

triangle -Nicholas

1.   A triangle is a closed figure with three sides.

2. There are six types of triangles.
A. Equilateral triangle
it has all three sides that are equal length, and consequently all three interior angles are equal size also.

B. isosceles triangle
it has two sides that are the same length and the other side a diffrent length.

C. Scalene triangle
it is one that has no sides that are of equal length.

D. right triangle
it has exactly one angle that is 90 degree.

E. obtuse triangle
it is a triangle where one (and only one) angle is an obtuse angle (its greater than 90 degree)

F. acute triangle
it is a triangle where all of the angles are acute angels.