A
straight angle: an
angle that measures exactly 1800
and forms a straight line.
A
protractor contains 180o
Notice that a protractor is half a circle and the bottom forms a
straight line.
A
straight angle: an
angle that measures exactly 1800
and forms a straight line.
A
protractor contains 180o
Notice that a protractor is half a circle and the bottom forms a
straight line.