Scale Factor
Proportions
AA/SSS/SAS Similarity
Similarity Statements
Test Review Questions
100
Two triangles ar similar by proving that their corresponding sides are.....
proportional!!
100
Solve for x.
14/84 = x/66
"What is x=11?"
100
According to SSS Similarity, what do two triangles need to have in order to be similar?
Three proportional, corresponding, sides
100
True or False?
A similarity statement must ONLY match corresponding angles.
"What is FALSE?"
A similarity statement must match both corresponding angles and proportional sides.
100
Which theorem proves these two triangles are similar?
Name the Postulate/Theorem
AA! Angle-Angle
200
What is the scale factor from MNPQ to RSTU?
MNPQ~RSTU
5/3
200
Given two equilateral triangles with sides 16 and 18, respectively, the scale factor of the larger triangle to the smaller triangle.
"What is 9 to 8?"
200
State if the triangles are similar or not and then what similarity statement makes it so.
"What is YES, by AA Similarity?"
200
Complete the similarity statement.
"What is Triangle DCB?"
200
True or false: Triangle ABC is similar to triangle DEF. Find all three angles to prove your answer.
TRUE! All three angles add up to
180^o
300
What is the values of
x, y, and z?
x=15
y=15
z=115^o
300
Given the two triangles are similar, find the missing indicated length.
?= 39
300
State if the triangles are similar or not and then what similarity statement makes it so.
"What is NO, not similar?"
300
Triangle ABC is similar to Triangle XYZ. Complete this statement: Triangle BCA is similar to..."
"What is Triangle YZX?"
300
State why the triangles are similar. Write a proportion to prove that they are similar.
triangleABC ~ triangleA'B'C' by SAS
18/21 = 24/28
400
The triangles are similar, find the scale factor of the larger triangle to the smaller triangle.
"What is 4:1?"
400
Solve for x.
2/x=x/32
"What is x=8?"
400
According to SAS Similarity, what do two triangles need to have in order to be similar?
"What is the lengths of two sides of one triangle proportional to the lengths of two corresponding sides of the other triangle and the included angles are congruent.?"
400
Complete the similarity statement.
"What is Triangle FGH?"
400
Given that
triangleABC ~ triangleDEF
solve for x and y.
x= 5.25
y = 5.3
500
What is the scale factor?
AB~=CD
2/3
or
3/2
500
Find the length of z
z=10 2/3
500
State if the triangles are similar or not and then what similarity statement makes it so.
"What is YES, by SAS Similarity?"
500
Are the triangles similar? If so, complete the similarity statement.
"What is NOT SIMILAR?"
500
Given
AE////BD
Solve for x.
x = 6