Video Transcript
Are all the radii of a circle equal
in length?
Radii is just the plural of
radius. And the radius of the circle is any
line that joins the center of that circle to a point on its circumference. So, if we take a circle center 𝑜,
we could have a radius here. It joins the center to a point on
its circumference. We could have one here or one over
here. Note that since the line begins at
the center of the circle each time and ends on the circumference, this line must be
the same length as this line and this line. And so, we say yes that all radii
of a circle are equal in length.
