GEOMETRY
TEST
CHAPTER 4A
NAME
PER
Determine whether each statement is true or false. If false, draw a counterexample.
(1)
All isosceles triangles are acute.
(2)
A acute triangle can be equilateral.
(3)
An scalene triangle is never obtuse.
(4)
A right triangle can be isosceles.
1
2
3
Use the given conditions to classify each triangle by its angles and sides.
(5)
WHO, mW  110, WH  WO  5
4
(6)
BAG, mB  90, GB  4, BA  3
5
6
Find the value of x:
(7)
5x °
34°
(7x + 9)°
7
(4x  3)°
(8)
49°
(3x+56)°
27 °
8
9
37°
10
x°
(9)
(10)
32°
11
x°
43°
12
x°
13
Write a congruence statement for the triangles in each diagram.
(11)
(12)
E
14
J
M
B
F
K
A
C
L
D
N
Use SSS, SAS, ASA, AAS to state the triangles that are congruent and why.
If not congruent, write not possible.
Q
G
B
(13)
(14)
M
P
R
N
A
C
F
E
Find the value of x:
(15)
36°
(16)
5x + 33
15
16
4x + 6
8x + 15
Given the ordered pairs, determine if ABC  DEF :
(17)
A (3, 1), B(6,  1), C (2,  2)
D (2,  1), E (1, 4), F (2, 2)
17