Vocabulary
This is a type of number used to make a smaller scaled copy.
What is a number less than 1.
If a length of 2 cm was multiplied by a scale factor of 2.25, then this is the new length.
What is 4.5cm?
Scale Factor =3m
side a = 4
side b = 3
side c = 5
What is the length of side c on the scaled copy?
what is 15
scale factor= 9
side a = 4
side b = 3
Area = 12 units 2; If I were to use the scale factor....
How many times greater would the new area be?
what is 81 times greater. (9 x 9)
On a scale drawing of a garden 2cm = 5m. If the length of the drawing is 10 cm, how long would the length of the garden be?
25m
To create a scaled copy of a figure, all the side lengths in the original figure are multiplied by the same number. This number is called the ___________.
What is the scale factor?
Two legs of a Right Triangle A are 3 & 4
Two legs of Right Triangle B are 9 & 12
What is the Scale Factor from Triangle A to Triangle B
What is 3
scale factor = 4
what is the new length of side c
side a = 2.5
side b = 3
side c = 3.5
Double or nothing!
what is 14
Scale factor = 2
A = 3 units
B = 2 units
Find the area of the new rectangle
What is 24 units 2
An American football field is 360 feet long. If you were drawing a scale drawing that had a scale of 1 cm = 36 feet, how long would your scale drawing have to be?
10 cm
copy of a figure where every side length in the original figure is multiplied by the same number.
What is a scaled copy?
If a length of 21 cm was multiplied by a scale factor of 3, then this is the new length.
What is 63 cm
scale factor = 3.5
side a = 4
side b = 8.5
side c = 2
find the new length of side b
what is 29.75
Scale factor = 4
A = 3 units
b = 4 units
Find the area of the new rectangle.
What is 192 units 2
The length of a professional soccer field is 360 feet. If the scale of a drawing was 1cm = 30 feet how long would the scale drawing of the soccer field be?
12 cm
The measure of the space inside a 2D shape. (hint L x W)
What is area?
If a length of 19 cm was multiplied by a scale factor of 1/2, then this is the new length.
what is 9.5 cm
scale factor = 1/5
side a = 2
side b = 4
side c = 5
what is the new length of side c
what is 1
Scale Factor = 1/2
Side A = 2 units
Side B = 8 units
Find the area of the new rectangle
what is 4 units 2
Ms. Harris made a scale drawing of a tall building. The scale was 1cm = 28 feet. If her drawing was 18 cm tall, how tall would the actual building be?
504 ft
What kind of numbers can we use to make a scaled copy bigger than the original.
What are numbers greater than 1?
If a length of 1/2 cm was multiplied by a scale factor of 1/4, then this is the new length.
what is 1/8 cm
scale factor = 1/2
side a = 4
side b = 8
side c = 15
What is the new length of side c
what is 7.5
scale factor = 1/4
side a = 8 units
side b = 16 units
find the area of the new rectangle
What is 8 units 2
A student was creating a scale drawing of a park. The scale on the drawing was 1 in = 10m. The longest side of the park in the drawing was 12.3 in long. How long would the actual park be?
123 m