- A6 cm
- B√20 cm
- C4.5 cm
- D3 cm
Step-by-Step Solution
Tangent–secant theorem: , so cm. (√20 wrongly uses )
Answer: A) 6 cm
From a point P outside a circle, a secant cuts the circle at A and B (PA = 4 cm, AB = 5 cm), and PT is a tangent from P. Find PT.
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