We know that tangents drawn to a circle from an external point are equal in lengths Now, PA = PC Tangents drawn from point P⇒PC = 2 cmNow, PR = 8 cm⇒PC + CR = 8 cm⇒CR = 8 - 2 = 6 cmNow, RB = RC Tangents drawn from point R⇒RB = 6 cmNow, QB = QA Tangents drawn from point Q⇒QB = 5 cmNow, QR = QB + BR = 5 + 6 = 11 cm

Q 2

We know that tangents drawn to a circle from an external point are equal in lengths . Now, PA = PC [Tangents drawn from point P] \Rightarrow PC = 2 cm Now, PR = 8 cm \Rightarrow PC + CR = 8 cm \Rightarrow CR = 8 - 2 = 6 cm Now, RB = RC [Tangents drawn from point R] \Rightarrow RB = 6 cm Now, QB = QA [Tangents drawn from point Q] \Rightarrow QB = 5 cm Now, QR = QB + BR = 5 + 6 = 11 cm

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