Question

What is the difference between a triangle and a triangular region ?

Answer 1

Hint: In this question, we need to list out the differences between the triangle and triangular region. The main difference between the triangle and the triangular region, deals with the interior and exterior of the triangle. Then we can discuss the difference between the triangle and the triangular region with the help of the diagram.

Complete step by step solution:
First, let us know about the interior and exterior of the triangle.
Interior of the triangle is nothing but a region lying inside the boundaries or the sides of the triangle whereas the exterior of the triangle is the region lying outside the boundaries or the sides of the triangle.
Now, let us list out the difference between a triangle and a triangular region.

Triangle	Triangular region
A triangle is a plane figure formed by three non-parallel line segments.	The region of the triangle is known as the triangular region which includes the interior of the triangle along with the triangle itself.
A triangle is a geometrical figure which has three sides, three angles and three vertices .	The interior of the triangle along with the sides of the triangle forms the triangular region of the triangle.
Diagram:	Diagram:

Note:
The area of the triangle is half the product of the base and height of the triangle. The perimeter of the triangle is the sum of all the sides of the triangle. If two angles of a triangle are given, we can easily find the third angle of the triangle. There are three types of triangle based on their sides namely isosceles triangle – a triangle with two equal sides , equilateral triangle – a triangle with all the three sides equal and scalene triangle – a triangle with no equal sides. And also there are three types of triangle based on their angles namely right angle triangle – a triangle which has one angle equal to \[90^{o}\] , acute angle triangle – a triangle which has all the angles less than \[90^{o}\] and obtuse angle triangle – a triangle which has one angle greater than \[90^{o}\] .