WorksheetsScale Factor, Similarity, Area and Perimeter
Total questions: 20
Worksheet time: 2hrs 38mins
Name
Class
Date
1.
What does congruent mean?
a)
Same shape, different size
b)
Not same shape, or size
c)
Same size, same shape
2.
All angles in similar figures are congruent.
a)
True
b)
False
3.
If two figures are similar, the corresponding sides are ______________.
a)
equal
b)
congruent
c)
proportional
d)
none of these
4.
If the scale factor is less than one, the new figure will be
a)
an enlargement
b)
a reduction
c)
a scale factor
5.
If the scale factor is greater than one, the new figure will be
a)
a reduction
b)
an enlargement
c)
a scale
d)
not proportional
6.
A __________ is a comparison of two quantities.
a)
transformation
b)
scale
c)
ratio
d)
graph
7.
Are the triangles similar?
a)
Yes
b)
No
8.
Are the triangles similar?
a)
Yes
b)
No
9.
Calculate the value of the scale factor between the 2 triangles
a)
2.5
b)
3
c)
3.5
d)
4
10.
Find x
a)
21
b)
27/7
c)
13
d)
18
11.
What is the value of X?
a)
X=4
b)
X=6
c)
X=3
d)
X=2
12.
The pair of figures is similar. Find the missing side.
a)
x = 1
b)
x = 3
c)
x = 9
d)
x = 5
13.
Find the ratio (blue to red) of the perimeter.
a)
4/7
b)
7/4
c)
49/16
d)
16/49
14.
Find the ratio (blue to red) of the area.
a)
4/7
b)
7/4
c)
49/16
d)
16/49
15.
Two objects that are the same shape but not the same size are _______.
a)
Congruent
b)
Vertical
c)
Similar
d)
Complementary
16.
Find missing side
a)
5
b)
7
c)
9
d)
11
17.
Matching sides are called
a)
Corresponding Sides
b)
Corresponding Angles
c)
The Same
d)
Congruent Sides
18.
What is the scale factor if the triangle on the left is the original?
a)
2
b)
3/2
c)
2/3
d)
1/2
19.
What is the scale factor?
a)
4
b)
.25
c)
5
d)
6
20.
Find the perimeter of the large triangle.
a)
24
b)
36
c)
12
d)
54
100 %
