Properties
All rigid motions map lines to _____, segments to _________, and rays to _____.
All rigid motions map lines to lines, segments to segments, and rays to rays.
Measure the angles of <BEC and <AED
138 degrees
Find the measure of <CFE and <BEF
60 degrees
Ms. Sanchez's first name
Mabelle
All rigid motions preserve _________ and ________ measurements.
All rigid motions preserve distance and angle measurements.
What rigid motion can you use to map and BEC and angle AED?
Rotation of 180 about point E
What is the relationship between angle CFE and BEF?
Alternate Interior Angles
Ms. Sanchez has ____ siblings
Ms. Sanchez has 2 siblings
Rotation of a line _____ about a point not on the line produces a ___________ line.
Rotation of a line 180 about a point not on the line produces a parallel line.
What do we know about the measures of vertical angles?
They are congruent
What is the measure of angle FEB and GFD?
60 degrees
Ms. Sanchez plays the (instrument) ____________.
Ms. Sanchez plays the Ukelele.
Rotation of a line _____ about a point that does lie on the line produces the ________ line.
Rotation of a line 180 about a point that does lie on the line produces the same line.
Exercise 2: In the diagram below find the value of x
x= 18
What is the relationship between angle FEB and GFD?
Corresponding Angles
Ms. Sanchez first car was the color _________.
Ms. Sanchez had a red car.
Translation of a line not along the line produces a __________ line.
Translation of a line not along the line produces a parallel line.
Find the measure of angle <ZST
<=48
Thus <FEB = <GFD because
a rigid motion has been found that maps <FEB onto <GFD
Ms. Sanchez graduated from (college) _________, in the Dominican Republic.
Ms. Sanchez graduated from La UASD, in the Dominican Republic.