Similar figures
Ratios and Proportions
Scale Factor
Side Splitter
Vocabulary/Trivia
100
Are these two triangles similar? If yes, write the similarity statement.
△QPR ~ △ ________
△QPR ~ △XYZ
100
What is the name of the way we learned on how to solve proportions?
Cross Multiplication
100
The formula to find the scale factor is:
Scale Factor = ________ / ________
Scale Factor = Image / Preimage
Or
K = I/P
Or
KIP
100
Peggy rode her bike 25 miles in 2 hours. At this rate, how far will she ride in 3 hours?
37.5 Miles
100
A ____________ is figure with three sides and three angles
A triangles
200
The two polygons below are similar, complete the similarity statement:
STUV ~ _______
STUV ~ CBAD
200
State if these ratios form a proportion.
No
200
What is the scale factor from the small fry to the large fry?
k = 3
200
Side KL is proportional to side UV and Side ML is proportional to side TU. If side KL=130, UV=60 and ML=117 what is the length of side TU?
54
200
Figures that have the same shape but different sizes are ___________________
Similar
300
The following triangles are similar, write the similarity statement:
△FGH ~△_______
△FGH ~△IKJ
300
State if these ratios form a proportion.
Yes
300
What is the Scale Factor from triangle ABC to triangle DEF?
k = 3/6= 1/2 or 0.5 or k= 5/10= 1/2 or 0/5
300
Kendrey ran 9 miles in 1 hour and 30 minutes. How long will it take her to run 12 miles at this pace?
2 hours
300
If two triangles are similar then their angles are ______________
Congruent
400
JDRT~KLMN , LM~_____
LM~DR
400
Solve the following proportion:
9/16 = x/12
x = 6.75 or x=6.8
400
If Side YX is similar to UV and Side ZX is similar to TV and YX=12, ZX=21, UV=22 and TV=28, What is the scale factor?
3/4 or 0.75
400
Out of every 5 students surveyed 3 students said they listen to Rock music. At that rate, how many students in a school of 900 listen to rock music?
540 students
400
Figures that have the same shape and same sizes are _____________
Congruent
500
JDRT~JHYX, Angle D ≅ Angle _____
Angle D ≅ Angle H
500
Solve the following proportion:
k = 5
500
Side LJ is proportional to side RP and Side KJ is proportional to side QP. If side LJ=28, RP=42 and KJ=33 what is the length of side QP?
22
500
The ratio of boys to girls in a class is 2:3. There are 15 girls in the class. How many boys are in the class?
10 boys
500
What are the three primary colors?
Red, Yellow, and Blue