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Two parallel lines touch the circle at points A and B respectively. If area of the circle is 25 n cm2, then AB is equal to (a) 5 cm (b) 8 cm (c) 10 cm (d) 25 cm

Two parallel lines touch the circle at
points A and B respectively. If area of the circle is 25 n cm2, then AB is equal to
(a) 5 cm
(b) 8 cm
(c) 10 cm
(d) 25 cm

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
2 years ago
Answer: c Explaination: (c) Let radius of circle = R ∴ πR² = 25π ⇒ R = 5 cm ∴ Distance between two parallel tangents = diameter = 2 × 5 = 10 cm.

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