12. Inthe figure, the circle with center 0, lines PQ and lines PR touch the tangents Q and R. If d (PQ) = 14 then
find d (PR)
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Answer:
4
Step-by-step explanation:
CQ and CP are the tangents to a circle
So, CQ=CP (Tangents to a circle from a common point (C) are equal in length)
CP=CQ=11
Also, BC+BQ=11
⇒BC+7=11
⇒BQ=4
So, BR=BQ=4. (Tangents to a circle from a common point (B) are equal in length)
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Answer:
the distance of (PR)=d=2r
by applying this formula
Step-by-step explanation:
d=2r
PQ=2(PR)
14=2(PR)
PR=2/14
PR=7
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