1.
Classify
A.
equiangular
B.
right
C.
obtuse
D.
acute
Hint
2.
Which figure shows
with
m
M
= 90;
m
P
>
m
N
, and
MP
<
MN
?
A.
B.
C.
D.
Hint
3.
Triangle
RST
is isosceles with
as the vertex angle. If
ST
= 3
x
- 11,
SR
=
x
+ 3, and
RT
=
x
- 2, find
RT
.
A.
5
B.
7
C.
14
D.
9
Hint
4.
Triangle
KMS
is equilateral. Find
KM
if
KM
=
x
+ 6,
KS
= 2
x
– 3, and
MS
= 4
x
– 21.
A.
9
B.
21
C.
15
D.
4
Hint
5.
Which statement is not true?
A.
In an isosceles triangle, the base is congruent to one of the legs.
B.
A triangle cannot be obtuse and contain a 90° angle.
C.
A triangle can be obtuse and isosceles.
D.
A triangle cannot be scalene and isosceles.
Hint