Question 970174
Draw a line from the center of the circle to
the center of the chord
A right triangle is formed by:
(a) The line from the center of the circle
(b) 1/2 of the chord
(c) The radius ( hypotenuse )
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The legs are: {{{ 5 }}} and {{{ 24/2 = 12 }}}
Let {{{ r }}} = radius
{{{ r^2 = 5^2 + 12^2 }}}
{{{ r^2 = 25 + 144 }}}
{{{ r^2 = 169 }}}
{{{ r = 13 }}}
The radius is 13 cm