Vocabulary
How do you solve to determine if 2 ratios are equivalent?
cross multiply or simplify the ratios
Triangle ABC is similar to triangle GHI. Which side corresponds to side BC?
side HI
You have a triangle with sides of 5 in, 4 in, and 3 in. What would the new sides be with a scale factor of 2.2?
6.6 in, 8.8 in, 11 in
A map uses the scale 1 inch: 7 miles. The distance on the map is 5 inches. What is the actual distance represented by the map?
You must use the correct units!
35 miles
What can you break, even if you never pick it up or touch it?
A promise
What do two shapes have to be to be similar?
same shape, proportional
Rectangle DEFG is similar to Rectangle MNOP. Which side corresponds to side DE?
side MN
Are these proportional?
rectangle with lengths 26 in and 10 in, and rectangle with lengths 4 in and 10.4 in
YES
A scale drawing of your house uses the scale 1 cm: 3 feet. If the actual measure of the porch is 39 feet, what will the measurement be on the scale drawing?
You must use the correct units!
13 cm
The more of this there is, the less you see. What is it?
Darkness
What is true about the angles of similar figures?
corresponding angles are equal
Parallelogram TUVW is similar to parallelogram CDEF. Which side corresponds to side CF?
side TW
You have a new triangle of A'B'C' with side lengths of 7.5, 8, and 10. What would the original side lengths be if the scale factor was 1/2?
15, 16, 20
A scale model of a boat uses a scale of 1inch: 2 feet. What is the actual size of the boat if the model boat is 20 inches long?
You must use the correct units!
40 feet
Where does today come before yesterday?
The dictionary
When two triangles are exactly the same they are...
CONGRUENT
Pentagon CDEFG is similar to pentagon PQRST. Which side corresponds to side EF?
side RS
Triangle ABC has side lengths of 15, 30, and 45. Your new triangle A'B'C' has side lengths of 5, 10, and 15. What scale factor was used to get the new triangle?
1/3
You take a photograph of Mount Monadnock (a mountain in NH). Monadnock is about 3000 feet high. If the photo scale is 1 mm: 200 feet, what is the height of the mountain in the photo?
15 mm
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
NOON
SIMILAR FIGURES HAVE CONGRUENT ________
ANGLES OR SHAPE
Rectangles BDEF and PSTR are similar. What is the corresponding side to TS?
ED
You have a triangle with sides 6, 8, 10. What are the new side lengths if you use a scale factor of 3.6?
21.6, 28.8, 36?
A 10 ft tree casts a shadow of 4ft... what is the shadow of a 4 ft statue next to it ?
2.5 ft
What can fill a room but takes up no space?
Light
SIMILAR FIGURES HAVE ______________ SIDE LENGTHS.
PROPORTIONAL SIDES
What shape would be a figure that is called ABCDEF?
Hexagon
What is the scale factor if side LM on figure LMNO is 5.5 and corresponding side is PQ on PQRS is 7.15.
1.3
If a model of the Eiffel Tower is 54.15 inches tall... how tall is the actual Eiffel tower if the scale factor was 1:20.
1083 feet
Where do polar bears keep their money?
In the snowbank