Look at the figure given below and answer the following questions. Name the points that lie in the interior of the given figure.

Given, We know that a closed figure bounded by three line segments is called a triangle and the region inside the triangle is called the interior of the triangle. In the given figure, the area enclosed by ∆ P Q R is called the interior of ∆ P Q R . From the above figure, interior points are A and B . Therefore, the required interior points are A and B .

Look at the figure given below and answer the following questions. Name the points that lie in the exterior of the above figure.

Given, We know that a closed figure bounded by three line segments is called a triangle and the region outside the triangle is called the exterior of the triangle. In the given figure, the area which is not enclosed by ∆ P Q R is called the exterior of ∆ P Q R . The points outside ∆ P Q R are called exterior points. From the given figure, exterior points are G and F . Therefore, the required exterior points are G and F .

Look at the figure given below and answer the following questions. Where do points C , E , and D lie?

Given, We know that a closed figure bounded by three line segments is called a triangle and the points which lie on the boundary are said to be on the triangle. From the given figure, the points C , E and D lie on the ∆ P Q R . Therefore, the points C , E and D on the ∆ PQR .