Question

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define Triangle ? explain with formulas
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Answer 1

Answer:

✫In Geometry, a triangle is a three-sided polygon that consists of three edges and three vertices. The most important property of a triangle is that the sum of the internal angles of a triangle is equal to 180 degrees. This property is called angle sum property of triangle.

So, the area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle. Example: Find the area of the triangle. The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle

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Answer 2

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How to define a Triangle ( ∆le ) ?

a triangle is a type of polygon, which has three sides, and the two sides are joined end to end is called the vertex of the triangle. An angle is formed between two sides. This is one of the important parts of geometry.

What is the shape of a triangle ?

Triangle is a closed two-dimensional shape. It is a three-sided polygon. All sides are made of straight lines. The point where two straight lines join is the vertex. Hence, the triangle has three vertices. Each vertex forms an angle.

Properties of a triangle

1. The sum of the angles of a triangle is always 180 degrees.
2. The exterior angles of a triangle always add up to 360 degrees

Types of triangles and categories ...

1. Scalene Triangle

2. Equilateral Triangle

3. Isosceles Triangle

1. Right-Angled triangle

2. Acute-Angled triangle

3. Obtuse-Angled triangle

Area of a triangle

Area of triangle = Half of Product of Base and Height

Area = 1/2 × Base × Height

Area of triangle using Heron's formula

Semi perimeter = ( a + b + c ) / 2

ie,,... sum of all the three sides ( length ) of triangle divided by 2 ....

Heron's formula ...

A = √[ s (s - a) (s - b) (s - c) ]