Rules and definitions
Scale Factor
Similar Figures
Word Problems
Mystery Category
100
Similar figures have the same what?
Shape
100
The scale factor tells you by how much a figure is ____________ or enlarged.
reduced
100
What is the value of x?
2.5
100
Sara is 6 feet tall. The sign she is standing next to casts a shadow that is 10 feet long. Sara's shadow is 3 feet long. How tall is the sign?
20 feet
100
When adding or subtracting decimals, you __________________________.
line up the decimals
200
Similar figures have different____________.
Sizes
200
When going from a big figure to a small figure, the scale factor will be a __________________.
fraction
200
Solve for f (round to tenths place)
10.3
200
A telephone booth that is 8 ft tall casts a shadow that is 4 ft long. Find the height of a lawn ornament that casts a 2 ft shadow.
4 ft.
200
When multiplying decimals, you _________ decimal spaces to know where to put the decimal.
count
300
The angles of similar figures are___________
congruent
300
When going from a small figure to a big figure, the scale factor will be a _________________.
whole number
300
Solve for x
6
300
A model house has a scale of 1 in : 2 ft. If the real house is 26 ft wide then how wide is the model house?
13 inches
300
When dividing decimals, don't forget that the decimal in the dividend _______.
"jumps up"
400
The lengths of corresponding sides of a similar figure are________.
Proportional
400
Figure one has a side length of 25inches. The corresponding side of figure two has a length of 5 inches. What is the scale factor? (if its an enlargement)
5
400
140
400
A 16 ft tall adult giraffe standing next to a baby giraffe casts a 8 ft shadow. If the baby giraffe is 6 ft tall then how long is its shadow?
3 ft.
400
True or false??
Integers are considered whole numbers
False
500
After you set up a proportion what do you do to figure out if two figures are similar?
Cross multiply
500
If you are scaling down from a large figure to a small, it is called a __________________.
reduction
500
Are these triangles similar?
yes
500
A particular motorcycle is 9 ft long. A model of it was built with a scale of 1 in : 3 ft. How long is the model?
3 ft.
500
Repeated decimals are considered ____________
(think number systems)
Rational numbers