Question

179
EXERCISE 10.4
1
2
Two circles of radii 5 cm and 3 cm intersect at two points and the distance between
their centres is 4 cm. Find the length of the common chord.
If two equal chords of a circle intersect within the circle, prove that the segments of
one chord are equal to corresponding segments of the other chord.
If two equal chords of a circle intersect within the circle, prove that the line
joining the point of intersection to the centre makes equal angles with the chords.
4 Ifa line intersects two concentric circles (circles
with the same centre) with centre O at A,B,C and
D. prove that AB = CD (see Fig. 10.25).​

Answer 1

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