Curriculum
Course: AP Board Class 7 Maths Chapter 6 The Tri...
Login
Text lesson

Solutions of Exercise 6.1

1. InA PQR, D is the mid-point of QR.

PM is ————

PD is ————–

Is QM =MR?

Solution:

Given, PM is perpendicular on QR. Therefore, PM is altitude.

Also, D is the mid-point of QR.

QD=DR

PD is median

No, QM ≠ MR, because D is the mid-point of QR.

2. Drawrough sketches for the following:

(a) In△ABC, BE isa median.

class_7_maths_ltriangles_its_properties_7

(b) In △PQR, PQ and PR are altitudes of the triangle.

class_7_maths_ltriangles_its_properties_8

(c) In△XYZ, YLis an altitude in the exterior of the triangle.

class_7_maths_ltriangles_its_properties_9

Q3. Verify by drawing a diagram if the median and altitude of an isosceles triangle can be same.

Solution:

Draw a triangle ABC and then draw a line segment AD perpendicular to BC. AD is an Altitude of the triangle. It can be observed that length of BD and DC is also same.

class_7_maths_ltriangles_its_properties_10

Therefore, AD is also a median of this Triangle.