Question 198263
The line from the center of the circle
is perpendicular to the chord and meets
at it's center. A right triangle is formed
by this line and 1/2 of the chord. The line
from the center to where the chord meets the circle
is the radius, which measures:
{{{sqrt(4^2 + 3^2)}}}
{{{sqrt(16 + 9)}}}
{{{sqrt(25)}}}
{{{5}}}
The radius is 5 cm long