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Laabri

Dilations Review

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Last updated about 2 hours ago
20 Nsɛmmisa
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NOTES, NOTES, NOTES, NOTES, NOTES!!!!!!

USE YOUR NOTES!!!!!!

CALCULATOR, CALCULATOR, CALCULATOR!!!!

USE YOUR CALCULATOR!!!!!

SCRATCH PAPER, SCRATCH PAPER, SCRATCH PAPER!!!!

USE YOUR SCRATCH PAPER!!!!!

YOU MUST HAVE ALL OF THESE THINGS IF YOU ARE GOING TO ASK ME FOR HELP!!!!!

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1.

A triangle with coordinates (1, 2), (3, 4), and (5, 6) is dilated by a factor of 2. What are the new coordinates of (1, 2)?

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2.

If a line segment is dilated by a factor of 4, how does its length change?

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3.

If you dilate a triangle by a scale factor of 3, what happens to its side lengths?

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4.

The coordinates of a point (2, 3) are dilated by a scale factor of 2. What are the new coordinates?

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5.

A dilation transforms a line segment from a length of 4 to 12. What is the scale factor?

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6.

A triangle has vertices at (1,2), (3,4), and (5,6). What are the coordinates after a dilation with a scale factor of 2?

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7.

If a point (3, -2) is dilated by a scale factor of 3, what are the new coordinates?

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8.

Which scale factor represents a reduction?

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9.

A scale factor of 1 means

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10.

A dilation with a scale factor greater than 1 produces

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11.

Quadrilateral KMPT is dilated by a scale factor of 3/4 to create quadrilateral K'M'P'T'. The perimeter of quadrilateral KMPT is 10 units. What is the perimeter in units of quadilateral K'M'P'T'?

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12.

Polygon A has an area of 27r square meters. Polygon A is dilated by a scale factor of 3 to create Polygon B. What is the area in square meters of Polygon B?

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13.

A flag is represented by the coordinates A(3,9), B(15,9), C(15,3), and D(3,3). Suppose you were to dilate the figure by a scale factor of 1/3 using the origin as the center of dilation.

How does the perimeter of the original figure compare to the perimeter of the dilated figure?

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14.

A flag is represented by the coordinates A(3,9), B(15,9), C(15,3), and D(3,3). Suppose you were to dilate the figure by a scale factor of 1/3 using the origin as the center of dilation.

How does the area of the original figure compare to the area of the dilated figure?

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15.

Triangle ABC is dilated by a scale factor of 2 to form triangle A'B'C'.

The perimeter for triangle ABC is 18 inches.

What is the perimeter of triangle A'B'C'?

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16.

Triangle ABC is dilated by a scale factor of 2 to form triangle A'B'C'.

The area of triangle ABC is 20 squared inches.

What is the area of triangle A'B'C'?

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17.

Triangle LMN is dilated by a scale factor of 4 to form triangle L'M'N'.

Perimeter of triangle LMN is 8 cm

Area of triangle LMN is 12 squared cm.

Select both the perimeter and area for triangle L'M'N'

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18.

A trapezoid door mat is similar in shape to a trapezoid rug. Each dimension of the door mat is 1/3 the size of the rug. Which statement is true?

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19.

Which rule best represents the transformation above?

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20.

Which transformation does NOT preserve congruence?