Reflections
This transformation creates a mirror image.
Reflection
Figures with the same shape but different sizes are called this.
similar figures
The ratio comparing image size to original size is called this.
scale factor
Congruent figures have the same shape and this.
size
A reflection flips a figure over this.
a line
Reflect point (4, 2) across the x-axis.
(4, -2)
In similar figures, corresponding angles are always this.
congruent/equal
A side changes from 2 cm to 8 cm. Find the scale factor.
What is 4
True or False: All congruent figures are similar.
True
A figure enlarged by scale factor 2 becomes this many times bigger.
twice/two times
Reflect point (-3, 5) across the y-axis.
(3, 5)
In similar figures, corresponding side lengths are this.
proportional
A side length of 5 cm is enlarged by scale factor 3.
What is 15 cm
True or False: Similar figures always have equal side lengths.
A rectangle is 4 by 7. Enlarged by scale factor 3, its new dimensions are this.
12 and 21
Reflect point (6, -1) across the x-axis.
(6, 1)
Rectangle A is 3 by 5. Rectangle B is similar and has width 6. Find the length.
10
A side length of 16 cm is reduced by scale factor 1/2.
8 cm
If two figures are similar, their corresponding angles are?
equal
A triangle has sides 2, 3, and 5. Enlarged by scale factor 4, the new sides are this.
8, 12, and 20
Reflect point (-8, -4) across the y-axis.
(8, -4)
A triangle has sides 4, 6, and 8. A similar triangle has sides 8, 12, and this missing side.
16
A shape has side length 9 cm and scale factor 5. Find the new side length.
45 cm
A square has side length 4 cm. A similar square has side length 20 cm. Find the scale factor.
5
A similar figure has side lengths multiplied by 6. A 7 cm side becomes this.
42 cm