Sewanhaka High School
Math 8
Class:______________
Name:___________________________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:________________________
Topic: Geometry with ALGEBRA
Main Idea: Measuring Angles
Aim:
H.W. #69A: Ditto
DO-NOW #69A:
1) Define the following:
a) An angle: __________________________________________________________________
Given:
Name the angle three ways:
C
Name the rays:
What type of angles is this?
b)
c)
d)
e)
A
T
Acute angles: _______________________________________________________________
Right angles: ________________________________________________________________
Obtuse angles: _______________________________________________________________
Straight angles: _______________________________________________________________
RECALL
NOTES
Angle/Arm Exercise: Raise your left arm and produce each of
the following anlges: right, acute, obtuse, and straight.
Using your
RIGHT ANGLE
protractor,
draw
examples of
each of the
following
angles and
measure
them:
right, acute, Complement:
obtuse, and Supplement:
straight.
Find the
OBTUSE ANGLE
complement
and
supplement
of each
angle that
you draw.
Complement:
Supplement:
Summary:
STRAIGHT ANGLE
Complement:
Supplement:
ACUTE ANGLE
Complement:
Supplement:
#69A