1.
The triangles below are congruent. Find a.
A.
a
= 7
B.
a
= 5
C.
a
= 8
D.
a
= 6
Hint
2.
What needs to be true to determine whether two triangles are similar?
A.
at least two sets of angles must be congruent
B.
only one set of angles must be congruent
C.
only one set of sides must be congruent
D.
only one set of sides must be similar
Hint
3.
A triangle has sides of 2 cm, 3 cm, and 4 cm. It is scaled to make a new triangle with one side that is 10 cm. What might the scale factor be?
A.
all answers are correct
B.
5
C.
10
D.
3
Hint
4.
Which set of ratios is equivalent?
A.
and
B.
4:3 and
C.
2:7 and 8:14
D.
and 3:2
Hint
5.
The triangles below are similar. Find
y
.
A.
90°
B.
35°
C.
55°
D.
110°
Hint