Solve for the missing side length in the following similar triangles: Triangle ABC has side lengths of 6 cm, 8 cm, and 10 cm, and Triangle DEF has side lengths of 9 cm, 12 cm, and x cm. What is the value of x?
Missing Triangle Value

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
25
15
20
7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the missing side length in the similar triangles: Triangle PQR has side lengths of 5 cm, 7 cm, and 9 cm, and Triangle STU has side lengths of 10 cm, 14 cm, and y cm. What is the value of y?
y = 25 cm
y = 20 cm
y = 12 cm
y = 18 cm
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apply the properties of similar triangles to find the missing value: In Triangle LMN, the length of side LK is 8 cm, and the length of side MN is 12 cm. If Triangle LMN is similar to Triangle PQR, what is the length of side PQ?
The length of side PQ is 10 cm.
The length of side PQ is 18 cm.
The length of side PQ is 15 cm.
The length of side PQ is 20 cm.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Triangle ABC is similar to Triangle DEF. If AB = 6 cm, BC = 8 cm, and EF = 12 cm, what is the length of side DE?
16 cm
10 cm
14 cm
20 cm
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the ratio of the corresponding sides in similar triangles is 2:3, and one side of the larger triangle measures 15 cm, what is the length of the corresponding side in the smaller triangle?
5 cm
20 cm
8 cm
10 cm
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In similar triangles, if angle A measures 40 degrees and angle B measures 60 degrees, what is the measure of angle C?
100 degrees
120 degrees
80 degrees
50 degrees
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the value for x in the triangle?
90 degrees
100 degrees
110 degrees
120 degrees
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