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What is the distance in cm between two parallel chords of length 32 cm & 24 cm in a circle of radius 20 cm.
(a) 4 or 28 (b) 3 or 21
(c) 2 or 14 (d) 1 or 7
Read Solution (Total 9)
-
- a.
AB & Cd r 2 chords..& Ef is the distance b/w them... & o is the centre
NOw Using pythgorus
OF=((OC)^.5 +(CF)^.5)^.5=12
same we get OE=16
finally EF =(16-12) or (16+12)=4 or 28
- 9 years agoHelpfull: Yes(14) No(1)
- When chords are on opposite side .Draw two perpendiculars from the centre , these two perpendiculars would be bisecting the two chords. hypotenuse is 20, base 16 . Perpendicular distance is 12 . another hypotenuse is 20,base is 12 , prpendicular is 16 . Therefore distance is 12+16=28.Again 16-12= 4. (when chords are in same side)
- 9 years agoHelpfull: Yes(13) No(0)
- by using pythagoras its coming 16cm and 12 cm .
so answer will be either 28 or 4 , optn c answer. - 9 years agoHelpfull: Yes(1) No(0)
- (c) 2 or 14
- 9 years agoHelpfull: Yes(0) No(4)
- Answer will be option D
i.e 1 or 7 - 9 years agoHelpfull: Yes(0) No(4)
- can some1 explain how?
- 9 years agoHelpfull: Yes(0) No(1)
- the ans is (a), draw the dig join end of the chords to center v vl get d ans
- 9 years agoHelpfull: Yes(0) No(0)
- @gagandeep . perpendicular from center bisects the chord .. radius given and half of chord lenth . distance from center of one chord can be found this way . similarly for second chord
- 9 years agoHelpfull: Yes(0) No(1)
- ans:28,using pythagorous theorem
- 9 years agoHelpfull: Yes(0) No(0)
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