Scale Factor
If a scale factor of 1/2 is applied to a polygon will the shape get bigger or smaller?
Smaller
Which scaled drawing is closer to the real life size? 1:12 or 3:100
1:12
Rectangle A has a length of 8 and a width of 6.
Rectangle B has a length of 8 and a width of 6.
Are these Rectangles scaled? If so what is the scale Factor?
Yes, SF =1
What is 1/3 multiplied by 7?
7/3 or 2 1/3
Where do assignments go that are completed and ready to grade?
A square has side lengths of 5. A scale factor of 3 is applied to make a new copy. What are the new side lengths?
With a scale of 1'' to 4' how big should a line of a 10 foot wall be?
2.5''
Rectangle A has a length of 3 and a width of 5.
Rectangle B has a length of 9 and a width of 20.
Are these Rectangles scaled? If so what is the scale Factor?
No
What is half of a half?
a quarter or 1/4
Why do you have to keep all passed back work?
Because your need it for your portfolio
A square with side lengths of 5 has been copied by a scale factor of 3. What is the new area?
225
With a scale of 1'' to 5' there is a wall that is 20'. How big should the drawing be?
4''
Rectangle A has a length of 7 and a width of 10.
Rectangle B has a length of 3.5 and a width of 5.
Are these Rectangles scaled? If so what is the scale Factor?
Yes, SF= 1/2
Write an equivalent fraction to 3/5
6/10, 9/15, 18/30, 30/50...
Where did Mrs. McCarthy go to high school?
Sci-Tech (Springfield)
A scaled copy of a triangle with an area of 12 has been created with a scale factor of 1/2. What is the area of the copy?
3
Which would be a larger scaled drawing of Utah, 1cm represents 50 miles or 1 cm represents 75 miles?
1 cm represents 75 miles.
A rectangle has a length of 5 and a width of 6. Name dimensions of a possible scaled figure.
Ratio 5:6
Which is larger 7/8 or .9?
.9
What do I do if i need to use the bathroom?
Write your name on the board and wait for Mrs. McCarthy to let you go to the bathroom.
A shape's copy has an area of 16. The copy was enlarged by a scale factor of 2. What was the area of the original?
4
If a map has a scale of 1'' to 3.5 miles. How many inches represent 17.5 miles?
5''
A triangle has sides measuring 3,4,and 5. Name dimensions of a possible scaled figure.
3:4:5
How many ninths are in 2/3?
six
When did Mrs. McCarthy meet her husband?
In 8th grade (Forest Park)