Question

in figure find the length of the tangent CD if ap= 3cm and pc =8 cm

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Answer 1

5cm

AP = BP

AP = 3 = PB - BC (BP)

THEREFORE, PB - BP = BC

= 8-3 = 5CM

Answer 2

Given: Ap =3 cm and pc =8cm

To find : Cd

Solution : AP =PB (tangent drawn from the external point of a circle are equal)

PB=3cm

PC = PB +BC

8 = 3+ BC

BC = 5 cm

Similarly BC =CD ( Tangent drawn from the external point of a circle are equal.

CD = 5cm

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