In the given figure, PQ is tangent at a point R of the circle with cen – InterviewSolution

InterviewSolution

1.	In the given figure, PQ is tangent at a point R of the circle with centre O. If , find `m anglePRS`.
Answer» As `ST` is passing through center of the circle, `:. ST` is the diameter of the circle. `PQ` is the tangent at point `R` of the circle. So, `/_TRS = 90^@` Also, as `PRQ` is a straight line, `/_PRS+/_SRT+/_QRT = 180^@` `/_PRS+90^@+30^@ = 180^@` `:. /_PRS = 60^@`

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