pls explain statement
Asked by akheelfiroz | 4th Dec, 2009, 11:24: AM
Expert Answer:
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Given - PQ is the diameter of the circle with centre O; CD and AB are the tangent lines at P and Q.
To prove – CD ||AB
OP
CD or PQ is CD (Tangent at a point is to the radius)
Similarly, PQ AB
CPQ = PQB = 90o
These are alternate angles.
Hence CD|| AB
Given - PQ is the diameter of the circle with centre O; CD and AB are the tangent lines at P and Q.
CD or PQ is CD (Tangent at a point is to the radius)ABCPQ = PQB = 90oAnswered by | 4th Dec, 2009, 12:24: PM
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