Match each word with it's proper defintion.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Enlargement | arrow_right_alt | A fixed point from which a dilation is generated |
Reduction | arrow_right_alt | When the scale factor is greater than 1, the image created is larger than the pre-image |
Center of Dilation | arrow_right_alt | When the scale factor is less than 1, the image created is smaller than the pre-image |
Match each word with it's proper defintion.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Similar | arrow_right_alt | Transformations that produce figures that are the same shape as the original figure, but not the necessarily the same size |
Dilation | arrow_right_alt | The ratio of the distance of the new figure from the center of dilation to the distance of the original figure from the center of dilation. Written as a fraction of the new figure compared to the original figure. |
Scale Factor | arrow_right_alt | When two figures ratios of corresponding side lengths are equal |
Which transformation does NOT preserve congruence?
A polygon is graphed on a coordinate plane with (x, y) representing the location of a point on the polygon. The polygon is transformed using the rule (x, y) → (ax, ay).
Which statement must be true?
Quadrilateral ABCD is dilated with the origin as the center of dilation to create quadrilateral A′B′C′D′.
Which rule best represents this transformation?
The perimeter of trapezoid E’F’G’H’ is times the perimeter of trapezoid EFGH.
The area of trapezoid E'F'G'H' is times the area of trapezoid EFGH.
Rectangle QRST has coordinates Q(−8, 5), R(−8, 7), S(−5, 7), and T(−5, 5).
Dilate the rectangle by a scale factor of 4 with a center of dilation at the origin.
Write a rule to describe this transformation and use the rule to determine the coordinates of point R′.
(X,Y) -->
R'
Select all scale factors that are a reduction.
Choose THREE answers.
Quadrilateral PQRS is dilated with the origin as the center of dilation to create quadrilateral P′Q′R′S′.
What scale factor was used to dilate quadrilateral PQRS?
A trapezoidal door mat is similar in shape to a trapezoidal rug. Each dimension of the door mat is one-third the size of the rug.
By what factor is the area affected?
Quadrilateral KMPT is dilated by a scale factor of 3/4 to create quadrilateral K’M’P’T’. The perimeter of quadrilateral KMPT is 60 units.
What is the perimeter, in units, of quadrilateral K’M’P’T’?