Problem of the Day
This was an actual poll on CNN! What is misleading about this graph?
5.1 Points, Lines, Planes, & Angles Lots of vocabulary today…GET READY!!!!
DEFITINITION POINT
Names a _____________
LINE
Perfectly straight and extends forever in _________ directions
PLANE
Perfectly ________ surface that extends forever in all directions
SEGMENT (Line Segment)
Part of a line between two _________
PICTURE
MATH SYMBOL
RAY
Part of a line that starts at one point and extends __________ in one direction
ANGLE
Formed by 2 __________ with a common endpoint called the _____________
CONGRUENCY Congruent figures have the same _____________ and ________________. •Segments that have the same ________________ are congruent. •Angles that have the same ________________ are congruent. •The symbol for congruence is “is congruent to”
and is read
Types of Angles DEFINITION Right angle Acute angle
Less than ______
Obtuse angle Greater than_____ but Less than________
PICTURE
Types of Angles continued… Complimentary Angles that add up angles to ______ Supplementary Angles that add up angles to ______ Vertical angles ______________ ________ form two pairs of vertical angles. They are ______________.