# Which is the best definition of a triangle

## What is a triangle in math definition?

A triangle is

**a polygon with three edges and three vertices**. It is one of the basic shapes in geometry.## What is the definition of a triangle apex?

**The vertex of an isosceles triangle having angle different from the two equal angles**is called the apex of the isosceles triangle. The common polygon vertex at the top of a pyramid or the vertex of a cone is also called an apex.

## What is called a triangle?

**A simple closed curve or a polygon formed by three line-segments (sides)**is called a triangle. The above shown shapes are triangles. The symbol of a triangle is ∆. A triangle is a polygon with three sides. … Triangles can be classified on the basis of sides and angles.

## What is triangle Class 10 definition?

A triangle can be defined as

**a polygon which has three angles and three sides**. The interior angles of a triangle sum up to 180 degrees and the exterior angles sum up to 360 degrees.## What is the definition of triangle for kids?

A triangle is

**a shape formed when three straight lines meet**. All triangles have three sides and three corners (angles). The point where two sides of a triangle meet is called a vertex. … The three angles inside a triangle always add up to 180°.## What is triangle Class 9?

Triangle: A closed figure formed by three intersecting lines is called a triangle (‘Tri’ means ‘three’).

**A triangle has three sides, three angles and three vertices**. e.g., In triangle ABC, denoted as ∆ABC. AB, BC, CA are the three sides, ∠A, ∠B, ∠C are the three angles and A, B, C are three vertices. 2.## What is triangle definition and types?

Triangles are shapes with three sides. … A triangle’s type depends on the length of its sides and the size of its angles (corners). There are three types of triangle based on the length of the sides:

**equilateral, isosceles, and scalene**. The green lines mark the sides of equal (the same) length.## What is triangle with example?

The definition of a triangle is a shape with three angles and three sides. An example of something in the shape of a triangle is

**a piece of pizza**. … (geometry) A polygon with three sides and three angles.## What is a triangle class 8?

A triangle is a

**polygon with three sides having three vertices**. The angle formed inside the triangle is equal to 180 degrees. It means that the sum of the interior angles of a triangle is equal to 180°. It is a polygon having the least number of sides.## What is the definition of scalene triangle?

Definition of scalene

of a triangle. : **having the three sides of unequal length** — see triangle illustration.

## How many triangle are there?

The drawing was shared on Quora earlier this month and has people scratching their heads. Most people on Quora unanimously agreed that the answer is

**24**, with each row containing six triangles.## What is triangle definition Class 6?

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.## What is a triangle class 7?

Triangle: A triangle is

**a simple closed curve made of three line segments**. It has three vertices, three sides and three angles. Here in ΔABC, it has. Sides: \bar { AB }, \bar { BC }, \bar { CA }. Vertices: A, B, C.## What is triangle with diagram?

A triangle diagram is defined by

**a set of curves (levels) in a regular triangle**. The endpoints of each level lie on the boundary of the triangle except for the vertices. … The levels are oriented and the corresponding sides of triangle are called source and destination.## What does triangle mean in physics?

What does the triangle mean in physics equations? the triangle is a mathematical symbol which denotes

**change in a quantity**. it is called delta. so delta v= final velocity -initial velocity,delta t=time during the final velocity – time during the initial velocity was recorded.## How do you describe a triangle?

A

**triangle has three sides, three vertices, and three angles**. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side. … The area of a triangle is equal to half of the product of its base and height.