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Home >> Triangle >> Exterior of a Triangle >>

Exterior of a Triangle

Properties Types / Classification Perimeter of Equilateral Triangle Median of Triangle Interior of a Triangle
Exterior of a Triangle Altitude of a Triangle Interior Angles of Triangle Exterior Angles of Triangle Interior Opposite Angles of Triangle
Adjacent Interior Angle of Triangle Congruent Triangles Area of Triangle Area of Triangle by Heron's Formula Construction of Triangle (compass)

Exterior of a triangle is an area which lies outside the boundaries of a triangle.

Or In order words,

Exterior of a triangle is an area which lies outside the three sides of a triangle.

Or we can also say that;

An area outside the boundaries or perimeter of a triangle is known as exterior of a triangle

Example 1: In the below diagram:



Entire area highlighted in green is referred to as Exterior of triangle ABC.


Example 2: In the below diagram:



Points P, Q, R, S & T lies in the exterior of triangle ABC.


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