If PQ = 28cm, then find the perimeter of ∆PLM
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CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
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CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
Last updated at Feb. 24, 2022 by Teachoo
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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