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.
14
B.
9
C.
7
D.
5
Hint
2.
Triangle
KMS
is equilateral. Find
KM
if
KM
=
x
+ 6,
KS
= 2
x
– 3, and
MS
= 4
x
– 21.
A.
21
B.
9
C.
4
D.
15
Hint
3.
Name the remote interior angles of
A.
B.
C.
D.
Hint
4.
Which figure is an obtuse triangle?
A.
B.
C.
D.
Hint
5.
ABC is ______.
A.
isosceles and scalene
B.
scalene and acute
C.
scalene but not acute
D.
equilateral
Hint