geometry
posted by Justice .
Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?

Well, try to get the distance from the center of the circle to the center of one of the chords
For example the 10 cm chord.
line from circle center to middle of 10 cm chord hits chord at right angle, cuts it into two 5 cm legs
now have right triangle with leg 5 and hypotenuse 13 so other leg is sqrt(16925)
or 12
so 12 is distance from center to the 10 cm chord.
Now do the distance to the 24 cm chord and add the two distances. 
please give me answer

17

17cm

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