1.
Triangle
RST
is isosceles with
as the vertex angle. If
ST
= 3
x
- 11,
SR
=
x
+ 3, and
RT
=
x
- 2, find
RT
.
A.
7
B.
5
C.
9
D.
14
Hint
2.
Triangle
KMS
is equilateral. Find
KM
if
KM
=
x
+ 6,
KS
= 2
x
– 3, and
MS
= 4
x
– 21.
A.
15
B.
21
C.
9
D.
4
Hint
3.
Find
A.
68
B.
50
C.
62
D.
56
Hint
4.
What is the value of
n
?
A.
24
B.
14
C.
26
D.
9
Hint
5.
Which figure is an obtuse triangle?
A.
B.
C.
D.
Hint