NCERT Solutions For Class 6 Maths, Chapter 4, Basic Geometrical Ideas, Exercise 4.4 involves study of exterior and interior points and also study of line segments. A line segment corresponds to the shortest distance between two points. The line segment joining points A and B is denoted by $\overline{AB}$ . Exercise 4.4 class 6 maths chapter 4 involves total two questions.
NCERT Solutions For Class 6 Maths, Chapter 4, Basic Geometrical Ideas, Exercise 4.4
Q.1. Draw a rough sketch of a triangle ABC. Mark a point P in its interior and a point Q in its exterior. Is the point A in its exterior or in its interior?
Ans: Point A is a vertex which lies on the given triangle ABC. It lies neither in interior nor exterior.
Q.2. (a) Identify three triangles in the figure.
(b) Write the names of seven angles.
(c) Write the names of six line segments.
(d) Which two triangles have ∠B as common?
Ans: (a) The three triangles are ∠ABD, ∠ACB, ∠ADC
(b) The angles are ∠ADB, ∠ADC, ∠ABD, ∠ACD, ∠BAD, ∠CAD, ∠BAC
(c) The line segments are $\overline{AB},\,\,\overline{AC},\,\,\overline{AD},\,\,\overline{BD},\,\,\overline{DC},\,\,\overline{BC}$.
(d) ∠ABC and ∠ABD are triangles which have ∠B as common.