Download Geometry (C) Exam #4

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Geometry (C) Exam #4
Classifying Triangles
1. Matching
A.
B.
C.
D.
__________
__________
__________
__________
No Congruent Sides
Contains an angle greater than 90 degrees
At least two congruent angles
A triangle with three 60 degree angles
A. Equilateral Triangle
B. Isosceles Triangle
C. Scalene Triangle
D. Obtuse Triangle
2. Can a triangle have more than one obtuse angle? Why or why not?
Triangle Sum Theorem
3a. Solve for x.
3b. Solve for x, z, m, and y.
J
D
z
73
3x
105
C
x
y
68
m
64
7x - 10
B
3c. Solve for x and y
4x
2x
7x - 2
x + 12
3x + 5
2y
Exterior Angle Theorem
4a. Solve for x
4b. Solve for x
15x + 5
3x + 15
80
10x + 20
8x - 5
6x + 6
5a. Solve for x & y.
5b. Solve for x & y.
x +7
12y - 10
85
x
y
1
y
2
50
x
3x - 1
6. Given
ABC 
STU
Find
mT =
mC =
AC =
mU =
mA =
ST =
C
A
12 inches
J
80
65
4 inches
B
I
H
7. Given RT bisects
QRS and
. Prove
Q
1
R
T
2
S
Statements
Reasons
1. Given
8. Given
, and XT bisects
SXR. Prove
S
X
T
R
Statements
9. Given TP
A
Reasons
AS and
T
. Prove
S
P
Statements
Reasons