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∆OPA and ∆OQA are congruent by the ____ test.
In ∆OPA and ∆OQA,
∠APO = ∠AQO = 90° … (tangent ⊥ radius)
AO is common and is the hypotenuse.
OP = OQ … (radius)
So, ∆OPA and ∆OQA are congruent by the RHS test.
How many tangents can be drawn from an external point to a circle?
Two tangents cab be drawn from an external point to a circle.
Which of the following is incorrect?
RC and PB are not drawn from a common external point.
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