Triangles - Geometry
softetechnologies
28-06-2020    77 times
Triangles Geometry

Triangles

If a polygon designed with three lines or line segments and three vertexes, then this polygon is known as triangles. The sum of the internal angles of any triangles is 180°.

Types of triangle

Triangles are shapes with three sides. There are different names for the types of triangles. A triangle’s types depend on the length of its sides and the size of its angles.

There are three types of triangle based on the length of the sides:

  1. Equilateral: An equilateral triangle has three equal length sides and three equal inside angles. Each of the angles measures 60°
    Equilateral Triangles
    Equilateral Triangles
  2. Isosceles: An isosceles triangle has two equal length sides. It also has two inside angles that are equal size. Other angle can be acute(less than 90°), a right angle(equals to 90°), or obtuse (more than 90°).
    Isosceles Triangles
    Isosceles Triangles
  3. Private Teacher
  4. Scalene: A scalene triangle has no equal length sides. It also has no equal inside angles. These triangles can be acute (all angles less than 90°)
    Scalene Triangles
    Scalene Triangles

A triangle’s name also depends on the size of its inside angles

Tutorial at home
Tutorial at home
  1. Acute Triangles: If all the angles are less than 90°
    Equilateral Triangles
    Acute Triangles
  2. Right Angled Triangles: A right angled triangles has one inside angle that is a right angle (90°). These triangles can be isosceles or scalene. This is a right-angled scalene triangle because no sides are the same length. The sides opposite the right angle are called the hypotenuse.
    Right Angles
    Right Angles
  3. Obtuse Triangles: if one angle is more than 90deg;
    Obtuse Triangles
    Obtuse Triangles
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Arnab De
I have over 16 years of experience working as an IT professional, ranging from teaching at my own institute to being a computer faculty at different leading institute across Kolkata. I also work as a web developer and designer, having worked for renowned companies and brand. Through tutorialathome, I wish to share my years of knowledge with the readers.
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