Gujarat Board GSEB Textbook Solutions Class 7 Maths Chapter 6 The Triangles and Its Properties Ex 6.1 Textbook Questions and Answers.

Gujarat Board Textbook Solutions Class 7 Maths Chapter 6 The Triangles and Its Properties Ex 6.1

Question 1.
In ∆PQR, D is the mid-point of (overline{Q R}).
(overline{P M}) is _______
PD is _______
Is QM = MR?

Solution:
PM is an altitude of ∆PQR.
PD is a median of ∆PQR.
No, QM ≠ MR.

Question 2.
Draw rough sketches for the following:
(a) In ∆ABC, BE is a median.
(b) In ∆PQR, PQ and PR are altitudes of the triangle.
(c) In ∆XYZ, YL is an altitude in the exterior of the triangle.
Solution:
(a) In the adjoining figure, (overline{B E}) is a median of AABC.

(b) In right ∆QPR, (overline{P Q}) and (overline{P R}) are altitudes of the triangle.

(c) In the following figure, (overline{Y L}) is an altitude of ∆XYZ.

Question 3.
Verify by drawing a diagram if the median and altitude of an isosceles triangle can be same. Solution: In the adjoining figure, ∆ABC is an isosceles triangle having AB = AC.
Draw its median AD. Now, with the help of a protractor, measure the ∠ADB.
We find that

∠ADB = 90°
∴ AD is a perpendicular to BC
Thus, (overline{A D}) is the median as well as an altitude of ∆ABC.