Two or more figures are similar if they have
the same ________.
What is shape?
100
Use a scale factor of 2 to create a similar rectangle to a 2in by 3in rectangle. What are the length and width of the new rectangle.
What is 4in by 6in?
100
2 in by 3 in rectangle and a 6 in by 9 in rectangle
What is 3?
100
(2x, 2y)
What is makes the figure larger?
100
If the scale factor for 2 similar rectangles is 3, what is the scale factor for their perimeters?
What is 3?
200
These remain the same on all similar figures.
What are (corresponding) angles?
200
Use a scale factor of 4 to create a similar triangle to a triangle with a base of 4in and a height of 3in. What are the base and height of the new triangle.
What is a base of 16in and a height of 12in.
200
a triangle with a base of 4 mm & a height of 2 mm changing to a triangle with a height of 1 mm and a base of 0.5 mm.
What is 1/4 or 0.25?
200
(x-4,y+2)
What is move the figure to the left 4 units and up 2 units.
200
If the scale factor for 2 similar squares is 1/2, what is the scale factor for their perimeters?
What is 1/2?
300
In similar figures the side lengths are
changed by ___________
What is the same amount (or the scale factor)?
300
Use a scale factor of 1/2 to create a similar square to a 4in by 4in square. What are the length and width of the new square.
What is 2in by 2in.
300
A trapezoid with a base of 9cm and a height of 6cm, changed to a trapezoid with a base of 3cm and a height of 2 cm.
What is 1/3 or 0.33
300
(0.2x,0.2y)
What is the shape gets smaller?
300
If the scale factor for 2 similar triangles is 5, what is the scale factor for their perimeters?
What is 5?
400
If your scale factor is greater than 1 your new figure will be _________ than the original figure.
What is larger?
400
Use a scale factor of 1/3 to create a similar rectangle to a 3in by 12in rectangle. What are the length and width of the new rectangle.
What is 1in by 4in?
400
A square with 6 cm side lengths changed into a square with 18 cm side lengths.
What is 3?
400
(x+3,y-5)
What is the figure will move 3 units to the right and 5 units down?
400
If the scale factor for 2 similar rectangles is 3, what is the scale factor for their areas?
What is 9?
500
If your scale factor is less than 1 your new figure will be _________ than the original figure.
What is smaller?
500
Use a scale factor of 2.5 to create a similar rectangle to a 2in by 3in rectangle. What are the length and width of the new rectangle.
What is 5in by 7.5in?
500
A 4 in by 6 in rectangle changed into a 6 in by 9 in rectangle.
What is 1.5 or 1 1/2?
500
(2x+1, 2x-2)
What is the figure gets bigger, moves 1 space to the right and 2 spaces down.
500
If the scale factor for 2 similar squares is 1/2, what is the scale factor for their areas?