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Triangles Gabriel 5L

A triangle is one of the basic shapes in geometry they have 3 sides, 3 corners, 3 angles, 3 sides and also 3 edges. There are also 3 types of Triangles which is Equilateral, Isosceles, and Scalene

These are pictures of:


Equilateral	Isosceles	Scalene

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 is denoted.

-isosceles: two sides are equal in length.
-equilateral: all sides have the same length.
-scalene:all sides are not equal.

-right triangle: A right triangle or right-angled triangle is a triangle in which one angle is a right angle (that is, a 90-degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry.
-acute triangle:A triangle that has all interior angles measuring less than 90° is an acute triangle or acute-angled triangle.
-obtuse triangle: A triangle that has one interior angle that measures more than 90° is an obtuse triangle or obtuse-angled triangle.

triangles angel

triangle is one of the geometry it also have 3 sides that is all the same length .

The three angles always add to 180°

triangles darren 2013

definition of triangle:a three sided polygon
types of triangles:isosceles right triangle

Triangle_Joseph

A triangle is a plane figure with three straight sides and three angles.

Triangles are classified in 2 ways :

1) By the number of equal sides they have:

• scalene - all 3 sides have different lengths

• isosceles - 2 sides have equal lengths

• equilateral - all 3 sides are equal

2) By the types of angles they have:

• acute triangle - all 3 angles are acute (less than 90°)

• right triangle - has one right angle (a right angle = 90°)

• obtuse triangle - has one obtuse angle (an obtuse angle is greater than 90° and less than 180°).

There are 8 possible types of triangles :

1. Acute scalene (a triangle which angles are smaller than 90º and have 3 different sides

2. Right scalene (a triangle which have an angle of 90º and has 3 different sides)

3. Obtuse scalene (a triangle which have an angle more than 90º but less than 180º and has 3 different sides)

4. Acute isosceles (a triangle which angles are smaller than 90º and has 2 different sides)

5. Right isosceles (a triangle which have an angle of 90º and has 2 different sides)

6. Obtuse isosceles (a triangle which have an angle more than 90º but less than 180º and has 2 different sides)

7. Equilateral triangle (all sides are equal and each angle are 60º)

8. Oblique triangle (any triangle that is not a right triangle). It could be an acute triangle (all threee angles of the triangle are less than right angles) or it could be an obtuse triangle (one of the three angles is greater than a right angle)

Triangles- Adeline

Triangles

A triangle has three sides and is made of straight lines. A triangle may be classified by how many of its sides are of equal length. Or, it may be classified by what kind of angles it has.

There are three special names given to triangles that tell how many sides (or angles) are equal.

Equilateral Triangle: In an equilateral triangle, all three sides are the same length. An equilateral triangle is always equiangular.

Isosceles Triangle: In an isosceles triangle, two sides are the same length. An isosceles triangle may be right, obtuse, or acute.

Scalene Triangle: In a scalene triangle, none of the sides are the same length. A scalene triangle may be right, obtuse, or acute.

Right Angle Triangle: In a right triangle, one of the angles is a right angle an angle of 90 degrees.