**Class 6 Mathematics Chapter 4 |**

**Basic Geometrical Ideas ****| Exercise 4.4**

**Question 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?

**Answer 1:**

Point A lies on ΔABC.

**Question 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?

**Answer 2 :** (a) The three triangles are: ∠ABC,∠ABD,∠ADC

(b) Angles are:∠ADB, ∠ADC,∠ABD,∠ACD,∠BAD,∠CAD,∠BAC

(c)Line segments are: AB¯, AC¯, AD¯, BD¯, DC¯, BC¯

(d) Triangles having common∠B: ΔABC, ΔABD