NAME
DATE
PERIOD
Name ___________________________________ Hour ______
4-1
Skills Practice 4-1 and 4-2 Review Worksheet
Classifying Triangles
4-1 Classifying Triangles
Classify each triangle as acute, equiangular, obtuse, or right.
1.
60°
4.
2.
60°
60°
95°
90°
45°
50°
5.
50°
80°
3.
40°
40°
70°
6.
50°
30°
50°
55° 55°
100°
Classify each triangle as equilateral, isosceles, or scalene.
7. !ABE
8√2
8. !EDB
E
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
9. !EBC
8
D
C
10. !DBC
11. ALGEBRA Find x and the length of
each side if !ABC is an isosceles
−−
−−
triangle with AB # BC.
12. ALGEBRA Find x and the length of each
side if !FGH is an equilateral triangle.
#
4x - 3
"
B
9
A
x+2
(
3x + 10
2x + 5
'
$
x =ALGEBRA
______________
13.
Find x and the length of
each side if !RST is an isosceles
−− −−
AB = _____________
triangle with RS # TS.
5x - 8
)
4x + 1
= _______________
14.x ALGEBRA
Find x and the length of each
side if !DEF is an equilateral triangle.
FG = _____________
BC = _____________
3
GH = _____________
&
9x + 2
AC = _____________
FH = ______________
3x - 1
5x - 21
2x + 6
4
6x + 8
5
Chapter 4
%
43
7x - 39
'
Glencoe Geometry
NAME
DATE
PERIOD 57°
ware
- Infinite Geometry
Name___________________________________
FNGLE
INDING
ANGLE
MFind
EASURES
Find
the
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numbered
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FINDINGHA
MEASURES
the measure
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the
numbered
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EASURES
Find
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measure
of theangles.
numbered angles.
STUDENT
ELP
Kuta
Software - Infinite Geometry
Name___________________________________
NET
HOMEWORK
31.
32.
33.
ER HELP
Pin a Triangle
31. HOMEWORK HELP 1
33. Date________________
31. 32.
32.
33.
Period____
1
1
4-1site
Triangle
Angle
Sum
Visit
1
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Visit
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56!
Angles
in
a
Triangle
Date________________
Period____
56!
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56!
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www.mcdougallittell.com
3
measure
of
each
angle
indicated.
3
2
Find
each
missing
angle.
with
Exs.
31–33.
3
of Triangles
50!
3
3
40!
2
3.
3
2
for help with Exs.Angles
31–33.
40!
50!
95!
40!50!
13. the measure
15.1 2
95! 14.
42! angle indicated.
95!45!
Find
of each
42!
1 45!2
42!
45!
1 2
Find the measure of each numbered
3)
2) angle.
?
1) LOGICAL
2)
LOGICAL
REASONINGComplete
Complete
the
statement
using
always,
sometimes,
REASONING
the
statement
using
always,
sometimes,
4-2
INT
Practice
1.xor never.
65°
2.
?
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The variable
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orynever.
1statement
72° measures
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triangle.
Find
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measure
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each
angle.
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classify the 20°
2 of
measures
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Find
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measure
of each
angle.
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classify
the
or anever.
or
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measures
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triangle.
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measure
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each
angle.
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?
22.
An
isosceles
triangle
is
an
equilateral
triangle.
!!!!!
by its
?!!!!!!
22.
An isosceles
triangle
is angles.
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23.
obtuse
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23.
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34.
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36.
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?
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?
?
23.
An
is
is
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triangle.
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!!!!!
!!!
!!!
24.
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angle
of
a
triangle
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exterior
angles
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25.each
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triangle
!!!!!
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Find
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25.
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triangle
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5) 18.
4)
16.
17.
?!!!
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25.
The
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25.
angles
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A
triangle
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right
angle
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xy E
!!!!!
!!!!!
!!!
3 shown.
XTERIOR
ANGLES
Find
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measure
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the
exterior
?
xy A
26.
triangle
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right
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and
an
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angle.
x
!!!!!
!!!
y
E
XTERIOR
A
NGLES
Find
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measure
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XTERIOR
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Find
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measure
of
the
exterior
angle shown.
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26. A triangle
26. A
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right
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angle.
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2
IDENTIFYING
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Refer
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in Exercises
16–21.
37.
38.
39.
I37.
DENTIFYING PARTS OF37.
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38.
38. 39. in Exercises 16–21.
! 137°
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4. m∠2
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RIANGLES
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in Exercises
triangles
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16–21.
Exercises
35°
27. Identify
the legs and
hypotenuse
of any
triangles.
38!
27. Identify 20°
the legs and the hypotenuse
50°
? triangles.38!
38! of any right
39° triangles.
27.the
Identify
27.the
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Identify
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5. m∠3
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Use
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29. Find the coordinates of point C. Copy the graph
2°
FINDING
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100°
? ANGLE MEASURES Find the measure of the numbered
FINDING ANGLE
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Find
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31.
32.
33.
10.
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100°
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help with Exs. 31–33.
1
1
3
42!
42!
3
2
95!
95!
42!
2
40!
340! 2
95!
56!
56!
1
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50!
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40!
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triangle by
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12.
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x°
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=
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m™T = x° m™T = x°
m™Z = 90° m™Z = 90°
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
6) the graph
6.5)
m∠1
and sketch
¤ABC.
29. Find
the 29.
coordinates
Find the of
coordinates
point C. Copy
of point
the C.
graph
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and sketch
¤ABC.
and sketch ¤ABC.
and sketch ¤ABC.
5
4.1 Triangles
A (2, 2)?4.1and
B (5, Angles
2)199 and199
7. m∠4
30. Find the coordinates of a point D that forms
a Triangles
4.1
and
Angles
199
2
A(2,Angles
2)
B(5, Triangles
2) 7)
30. Find137°
the coordinates of a point D that formsÆ
a
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B (5, 2)
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triangle
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. a forms
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the of
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a point
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that
point Da that forms a A (2, 2) x B70°
118°
3
4
different isosceles right triangle with leg AB.
Æ
Æ
8. m∠3
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9. m∠2
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FINDING ANGLE MEASURES Find the measure of the numbered
angles.
30°
xy EXTERIOR ANGLES
14. CONSTRUCTION
TheFind
diagram
shows of
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4.1 Triangles and Angles
4.1 Triangles and Angles
199
199
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