Two parallel chords are drawn in a circle of diameter 10 m. The length of one chord is 8 m and the distance between the two chords is 6 m. Find the length of the other chord. |
10 m 6 m 4 m 8 m |
8 m |
Diameter of circle = 10 m Radius of circle = 5 m EB = \(\frac{8}{2}\) = 4 m By using pythagoras theorem, OB² = EB² + OE² 5² = 4² + OE² OE² = 25 - 16 = 9 OE = 3 m It is given that , EF = 6 m OF = 6 - OE = 6 - 3 = 3 m By using pythagoras theorem, OD² = FD² + OF² 5² = FD² + 3² FD² = 25 - 9 = 16 FD = 4 m So, CD = 2 × 4 = 8 m Length of other chord = 8 m
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