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Answer the following questions 0 How many tangents are seen at a point of the circle ?(ii) Define secant of the circle?(iii) Ifr, and r, are the radii of two concentric circles and (t, >1). If the chordof the larger circle AB touches the inter cirde. Find the value of AB |
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Answer» no. 1 The answer is two, and the FOLLOWING THEOREM proves this fact. Theorem: EXACTLY two tangents can be drawn from an exterior point to a GIVEN circle. We will make use of the fact that ∠PAO ∠ P A O must be 90 degrees. |
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