Central Angle
Inscribed angle
Inscribed angle
Inscribed angle
When the vertex is at
the center of the circle,
the measure of a Central
Angle is equal to the
measure of it’s
intercepted arc
When the vertex is ON
the circle, then the
measure of an angle
inscribed in a circle, is =
½ the measure of the
corresponding minor arc
Vertex is INSIDE of the
circle, then the measure
of an angle inscribed in a
circle, is = ½ the SUM of
the corresponding arcs
Vertex is OUTSIDE of
the circle, then the
measure of an angle
inscribed in a circle, is =
½ the difference of the
corresponding arcs
m∠APB = mAB
Instructions:
Students could either make their own foldable or the
teacher can copy the pages front/back.
Fold the paper in half where the first page is showing on
top.
On the top half of the foldable, cut along the line,
creating a flap that can be lifted to reveal clues and
examples.
Teachers should work out the example problems to
ensure students know the correct way to answer/solve
them.