Q8 of 27 Page 1

If PQ=28cm, then find the perimeter of ΔPLM.


PQ = PT (Tangents from an external point on a circle are equal)


PL + LQ = PM + MT


PL + LN = PM + MN (Tangents from an external point on a circle are equal)


Perimeter(ΔPLM) =PL + LM + PM


=PL + LN + MN + PM


= 2(PL + LN)


= 2(PL + LQ)


= 2 × 28 = 56cm


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