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In math, we like to give things names so we can refer to them easily. What do you think this angle could be called?
LEARNING TARGET
LEARNING TARGET
I can identify angles using angle notation.
I can identify angles using angle notation.
I DO
I DO
what are the rules for naming angles?
what are the rules for naming angles?
Vertex: the common endpoint of two rays that form an angle.
There are three ways to name angles:
If you label the angle, you can call it the label. (Angle 1 in the picture)
If the vertex of the angle has a letter, you can call the angle that letter name. (Angle C in the picture)
You can name the angle by a series of 3 letters where the vertex is the middle letter. (Angle ACB or BCA in the picture)
Let's try some examples!
Let's try some examples!
WE DO
WE DO
1. Draw a Batman symbol in angle ACB.
2. Sign your name between angles BCF and EFC with your "wrong hand."
3. Draw a pattern inside of angle DCA.
4. Write your favorite food in angle DCF.
5. Draw anything you want in angle HFG.
6. Draw a squiggly line over the top of line segment CF.
Compare your drawing with your neighbor. Did you both put all the parts in the same places?
YOU DO
YOU DO
Complete these problems (for a 3!)
Complete these problems for a 4!
Complete these problems for a 5 or 6!
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