Question

answer the given question ​

Answer 1

A,R and S lies in the exterior part of the triangles

Answer 2

The region around the triangle i.e. the area other than the area enclosed by the triangle is said to be the exterior region of a triangle. So, the points which lies in that region are said to be "points in the exterior part".

Here in the given figure, point A, point R and point S are the points in the exterior part of the triangle