Question

15. If the radil of two circles with centres O and O' are 7 cm and 10 cm and the
distance between their centres is 12 cm, in how many points do the circles Intersect?
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Answer 1

Answer:

Let radii R1=7cm and R2=10cm are the radius of O centred circle and O'centred circle.

given, OO'= 12cm.

and R1+R2=17cm.

It means, circles are intersect each other at two different.

As shown in the figure above