A pair of tangents can be constructed to a circle inclined at an angle of 1700.
A
True
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B
False
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C
Ambiguous
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D
Data Insufficient
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Solution
The correct option is A True LetusdrawtwotangentsfromPtothecirclewithcentreOatQ&R.OQ&ORarejoined.WehaveOQ&ORasradiiofthecircle.And∠OQP&∠ORPeach=90osincePQ&PRaretangentstothecircleatQ&Rrespectively.∴∠OQP+∠ORP=180o..........(i)But∠QPR+∠QOR+(∠OQP+∠ORP)=360o(Anglesumpropertyofquadrilaterals)⟹∠QPR+∠QOR+180o=360o(fromi)⟹∠QPR+∠QOR=180oSoeachof∠QPR&∠QOR<180o.Thegivenangleis170owhichislessthan180o.So,thestatement,thatapairoftangentscanbedrawntoacrcleinclinedatanangleof170o,istrue.Ans−true