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Tangent from an External Point Are Equal

PT is a tange...

Question

PT is a tangent from an external point P and PAB is a secant. If PT = 6cm and PA = 3cm, then the length of PB is __

A

6

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B

2

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C

12

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D

36

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Solution

The correct option is C
12

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Similar questions

Q. In the given below figure, from an external point P, a tangent PT and a secant PAB is drawn to a
circle with centre O. ON is perpendicular on the chord AB. Prove that PA. PB = PT2.

Q. In a circle, a tangent PT is drawn from a point P which touches at point T to the circle and a secant PAB is drawn which intersects the circle at A and B. If PT = 15 cm and AB = 16 cm, then the length of PA is

P A B

is a secant to a circle of centre

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intersecting the circle of

A

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is tangent segment, then prove that-

P A \times P B = P T^{2}

¯ ¯¯¯¯¯¯ ¯ P T

is a tangent of circle with centre O at point T. A secant passing through P in at A and B. If P-B-A, PT

= 12

= 4

, then PA ________.

Q. From an external point

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and a line segment

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P A . P B = P T^{2}

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