Math, asked by Khandamon9653, 1 year ago

) In the adjoining figure, point O is the
centre of the cirlcle, seg OM ⊥ chord AB.
If OM = 8cm, AB = 12 cm, then find OB.

Answers

Answered by Ankurk
0

ab = 12cm = am + mb \\ om \: perpendicular \: ab \\ am + mb = 12cm \\ mb + mb = 12cm \\2 mb = 12 cm \\ mb = 6cm \\ (ob)^{2}  =  (om)^{2} +   (mb) ^{2}  \\ ( {ob) }^{2}  = 8^{2}  +  {6}^{2}  \\  ob ^{2}  = 100 \\ ob = 10cm
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