Question 8 - CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards

Last updated at Dec. 16, 2024 by Teachoo

If PQ = 28cm, then find the perimeter of ∆PLM

If PQ=28cm, then find the perimeter of ∆PLM - CBSE Class 10 Sample Pap

Question 8 - CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard - Part 2

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Question 8 If PQ = 28cm, then find the perimeter of ∆PLMSince Length of tangents drawn from external point are equal PQ = PT PL + LQ = PM + MT Since Length of tangents drawn from point L and Mare equal PL + LN = PM + NM Now, Perimeter Δ PLM = PL + LM + PM = PL + LN + NM + PM = PL + LN + PL + LN = 2(PL + LN) = 2(PL + LQ) = 2 × PQ = 2 × 28 = 56 cm

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo

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