# Ex 6.1, 1 - Chapter 6 Class 7 Triangle and its Properties

Last updated at Nov. 8, 2018 by Teachoo

Last updated at Nov. 8, 2018 by Teachoo

Transcript

Ex 6.1, 1 In ∆ PQR, D is the mid-point of QR . (i) PM is _________________. As PM ⊥ QR ∴ PM is altitude of ∆PQR Ex 6.1, 1 In ∆ PQR, D is the mid-point of QR . (ii) PD is _________________. As D is mid point of QR ∴ PD is median of ∆PQR Ex 6.1, 1 In ∆ PQR, D is the mid-point of QR . (iii) Is QM = MR? Here, QD = DR QM + MD = MR − MD QM = MR − MD − MD QM = MR − 2MD AS MD ≠ 0 ∴ QM ≠ MR

Altitude and Median of a triangle

Chapter 6 Class 7 Triangle and its Properties

Concept wise

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.