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.