Question

distance of chord AB from the centre of a circle is 8cm length of the chord AB is 12cm. find the radius of the circle.
pls give me the ans step by step from given to find and solution .
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Answer 1

Answer:

R.E.F image

Given length of chord AB = 12 cm.

Distance of chord from center = 8 cm.

OC=8 cm .AC= 2

12=6 cm

In△OAC OA 2 =AC 2+OC 2OA 2 =(6) 2 +(8) 2

=36+64

[ OA=10 cm].

∴ Diameter of circle is 2(OA) = 20 cm.

Answer 2

Step-by-step explanation:

perpendicular from centre to chord bisect the chord.

OM=8(given)

AM=1/2AB=6

in triangle OAM

AO^2=OM^2+AM^2

=8^2+6^2

=64+36

=100

so AO=10

radius 10