WorksheetsSimilar Triangles & Scale Factor Practice 1
Total questions: 18
Worksheet time: 25mins
The figures are similar.
Find the missing side.
30
34
36
38
40
The figures are similar.
Find the missing side.
24
20
22
18
26
The figures are similar.
Find the missing side.
10
10.5
12
12.5
16
The figures are similar.
Find the missing side.
9
12
8.5
6
10
The figures are similar.
Find the missing side.
18.5
20
22.5
24.5
21
The figures are similar.
Find the missing side.
52.5
50
48.5
54
60
The figures are similar.
Find the missing side.
26
27.6
25.2
28.8
30.4
What is the scale factor from ΔABC to ΔDEF?
1/2
7/3
2
10/3
3/10
What is the scale factor from ΔABC to ΔXYZ?
4/5
3/2
2
5/2
5/4
Given that Triangle ABC is similar to Triangle DEF. Find the angle B.
60⁰
42⁰
79⁰
180⁰
Given that Triangle ABC is similar to Triangle DEF. Find the angle F.
60⁰
42⁰
79⁰
180⁰
Name the triangle similar to triangle BCA.
Triangle EFD
Triangle FDE
Triangle DEF
Triangle EAD
If the linear scale factor is 4, what is the area scale factor?
2
8
16
25
Two shapes are ___________ if their corresponding sides are proportional and their corresponding angles are congruent.
Similar
Ratio
Scale factor
Not similar
What is the perimeter of XYZ?
21 m
35 m
90 m
126 m
756 m
Two similar triangles have a scale factor of ⅔. The area of the larger triangle is 12 cm2.
What is the area of the smaller triangle?
4 cm2
8 cm2
9 cm2
12 cm2
24 cm2
