Download Day 3 Lesson 1 Classifying Triangles

e x p l o r at i o n
4-1 Classifying Triangles
Triangles can be classified in different ways. In this Exploration,
you will sort triangles according to their angle measures and
side lengths.
1. Look at these triangles. Based on their appearances, sort the
triangles by listing them in the appropriate columns. A triangle
may be listed in more than one column.
"
#
!
&
(
'
All Acute
Angles
One Right
Angle
$
)
One
Obtuse
Angle
%
*
Thee
Congruent
Sides
THINK AND DISCUSS
2. Draw a triangle of your own and explain which columns the
triangle should be listed in.
3. Describe another category that you could add to the table.
List the given triangles that would fall into this category.
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
21
Holt Geometry
e x p l o r at i o n
4-1 Classifying Triangles
Triangles can be classified in different ways. In this Exploration,
you will sort triangles according to their angle measures and
side lengths.
1. Look at these triangles. Based on their appearances, sort the
triangles by listing them in the appropriate columns. A triangle
may be listed in more than one column.
"
#
!
&
$
(
'
%
*
)
All Acute
Angles
One Right
Angle
One
Obtuse
Angle
C, E, G, H, J
A, F
B, D, I
Three
Congruent
Sides
C, E, H
THINK AND DISCUSS
2. Draw a triangle of your own and explain which columns the
triangle should be listed in. Possible answer: 1 rt. angle
3. Describe another category that you could add to the table.
List the given triangles that would fall into this category.
3. Possible answer: 3 ! !s ; C, E, H
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
21
Holt Geometry