2. B
A
C
Look at the hands of the clock.
How many hands does it have?
What geometric figure does each hand represent?
Ray AB meets with ray AC at point A. When two rays meet a common
endpoint, they form an angle. Point A, the common end point, is called
the vertex. An angle can be named in 3 ways.
< BAC is read as “angle BAC”
< CAB is read as “angle CAB”
< A is read as “angle A” or < 1 is read as “angle 1.”
3. An angle is measured in
degrees (“). Angles can
be classified according
to their measurements.
