Question

find the length of the cord which is at a distance of 8cm from the centre of a circle of 17cm radius

please answer!

thanx!!

Answer 1

hi friend
here's your answer looking for

in the given figure that I had attached.

we can find the MB

by Pythagoras theorem,


${17}^{2} = {mb }^{2} + {8}^{2} \\ \\ 289 - 64 = {mb}^{2} \\ \\ \sqrt{225} = mb \\ \\ mb = 15cm$
now,

we know that perpendicular from the centre to the chord ,bisects the chord.

so, AB = AM + MB

AB = 2MB

AB = 30 cm

so, this is your answer

hope you are satisfied with my answer

Answer 2

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