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a-The-area-of-a-sector-of-a-circle-of-radius-12cm-is-132cm-2-If-the-sector-is-folded-such-that-its-straight-edges-coincide-to-form-a-cone-Find-the-radius-of-the-base-of-the-cone-Take-




Question Number 44548 by Tawa1 last updated on 01/Oct/18
(a)  The area of a sector of a circle of radius  12cm is  132cm^2  .  If the sector  is folded such that its straight edges coincide to form a cone. Find the   radius of the base of the cone    [  Take    π  =  ((22)/7) ] .    (b)     A circle of centre O has radius 5cm.  A chord PQ of the circle is 6cm long.  caclculate:      (i)   The distance of the chord from the centre O     (ii)  The angle POQ
(a)Theareaofasectorofacircleofradius12cmis132cm2.Ifthesectorisfoldedsuchthatitsstraightedgescoincidetoformacone.Findtheradiusofthebaseofthecone[Takeπ=227].(b)AcircleofcentreOhasradius5cm.AchordPQofthecircleis6cmlong.caclculate:(i)ThedistanceofthechordfromthecentreO(ii)TheanglePOQ

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