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

Answer 1

Make a sketch
Draw in the height from the centre to each line.
Complete the right-angled triangles, and mark their sides.

Did you know that a triangle with sides 5 -12 -13 forms a right angle ??

Mmmhhh?

Answer 2

17cm