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# 1-4 Measuring Angles

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## Sherrie Ammons

on 22 August 2013

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#### Transcript of 1-4 Measuring Angles

1-4
Measuring Angles
Standards
Objective
Essential
Question
Vocabulary
Key
Concepts
Try
It Out
Classwork
Summary
Real-Life
Connection
To find & compare
the measures of angles
How do you find & compare
the measures of angles?
You can use number operations
to find & compare the measures of angles
angle
sides of an angle
measure of an angle
acute angle
right angle
obtuse angle
straight edge
congruent angles
formed by 2 rays with
the same endpoint
The rays of an angle
the degrees inside
the angle
0 < x < 90
X = 90
90< X < 180
Angles with the same measures
Protractor Postulate
Postulate

Pool
(the game)

Making
Angles

Use a protractor to draw 5 angles. Switch papers with your shoulder partner and have them measure and label the angles. Check your partners work.
Homework:
1-4 Reteaching Worksheet

SPI 3108.4.2 - Define, identify, and/or model plane figures using appropriate mathematical symbols (including collinear and non-collinear points, lines, segments, rays, angles, triangles, quadrilaterals, and other polygons)
A ruler or anything that can be
used to draw a straight line.
How do we name angles?
By the point at the vertex
By three points, with the vertex in the middle
By a number,written inside the angle
Full transcript