Transcript Angles - TeacherTube

Angles
By
Peter
Woo
Period:3
What are
angles?
What
do they
Let’s
Finddo?
Out
Where are they
found?
Angles are…
Angles are the figure formed by two
lines diverging from a common point.
Such as the corners of this square,
but squares have four even
sides so they are all 90◦
Okay.
.
.
but
what
are
they
used
for?
seeing that a parallelogram
would have a total of 360◦.
How do you know how
many degrees are in a
shape?
In a triangle there are 180◦, and as I
said before there are 360◦ in a
That’sparallelogram.
great and all but howTo
amfigure
I supposed
use this
information?
outto the
other
shapes just add 180◦ for each side.
180◦
360 ◦
520 ◦
Where angles are found? They’re found
everywhere just look around. In an
office, a room, a kitchen, even a
bathroom or our school!
Where are they
found!
How do you classify
angles?
Angles fit into three categories:
obtuse, acute, and right. Obtuse
angles are any angles that are
more than 90◦. Acute angles are
any angles that are less than 90◦.
Right triangles are the ones that
are actually 90◦.
How do you find and draw
angles?
Well for this you need a protractor. If you
want to find an angle you need to place
the dot or symbol on the flat half of the
protractor on the vertex or point
connecting the to lines. You should place
one flat with that. Finally you should find
the measure of the other line and then
that’s your angle, but if you want to draw it
you just draw a line and line up your
protractor. Next you just find the other line
and trace it over and you have your angle.
Definitions Just Incase
• Protractor-A tool used for measuring
angles.
• Vertex-The point at which two angles
meet.
Pre-algebra
By
Peter Woo
Period:3
Thanks for Watching
HMS
(Holdrum Middle School)
Mr. Heffernan
Thanks for watching