NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties

 

NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.1

NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Exercise 6.1
Ex 6.1 Class 7 Maths Question 1.
In ∆PQR, D is the mid-point of QR¯¯¯¯¯¯¯¯ ,
PM¯¯¯¯¯¯¯¯ is
PD¯¯¯¯¯¯¯ is
NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties 1
If QM = MR?
Solution:
PM¯¯¯¯¯¯¯¯ is altitude.
PD¯¯¯¯¯¯¯ is median.
No, QM ≠ MR.

Ex 6.1 Class 7 Maths Question 2.
Draw rough sketches for the following:
(a) In ∆ABC, BE is a median.
(ib) In ∆PQR, PQ and PR are altitudes of the triangle.
(c) In ∆XYZ, YL is an altitude in the exterior of the triangle.
Solution:
NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties 2

Ex 6.1 Class 7 Maths Question 3.
Verify by drawing a diagram if the median and altitude of an isosceles triangle can be same.
Solution:
∆ABC is an isosceles triangle in which AB = AC
NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties 3
Draw AD as the median of the triangle.
Measure the angle ADC with the help of protractor we find, ∠ADC = 90°
Thus, AD is the median as well as the altitude of the ∆ABC. Hence Verified.

NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.1 Q1

NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties Ex 6.1 Q1.1

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