Section 2.7 Dilations 85 EXAMPLE 2 Dilating a Figure Draw the image of Triangle ABC after a dilation with a scale factor of 3. Identify the type of dilation. The image is sho wn at the right. The dilation is an enlargement because the scale factor is greater than 1.
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Worksheet Dilations 1. Use the ruler to draw the image of the figure under a dilation with center M and the scale factor k indicated. Name: _____ Date: _____Per: _____ 2. Determine whether the dilation from B to B' is an enlargement or a reduction. Then find the
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3.11 Dilations Name_____ ID: 1 Date_____ Period____ ©q z2S0k1x9A XKauGtda\ CSToFf\tiwgaYr[el rLILmCe.b U uAblGlH Mrri^gShhtLsp grPeUsJearlvxeYdX.-1-Graph the pre-image and the image of the figure using the transformation given. 1) dilation of 2 about the origin V (-1, -2), W (0, 2), X 1, 2), Y (2, 1) x y 2) dilation of 5 about the origin ...
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Dilations A dilation is a transformation that moves each point on the original figure along a straight line drawn from a fixed point, called the center (or point) of dilation. The description of a dilation must include the scale factor (or ratio) and the center of dilation.
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Rotations and Dilations Worksheet/ Homework Graph the image of the figure using the transformation given. 1. rotation 180° about the origin 2. rotation 90° about the origin 3. rotation 90° about the origin 4. rotation 270° about the origin . Draw a dilation of the figure using the given scale factor. 9. k = 2
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Regents Exam Questions G.SRT.A.2: Dilations 2 Name: _____ www.jmap.org 1 G.SRT.A.2: Dilations 2 1 If the dilation D k is an isometry, what must be the value of k? 1) 1 2) 2 3) −2 4) 0 2 What are the coordinates of the point (2,−4) under the dilation D−2? 1) (8,−4) 2)(4,−8) 3)(−8,4) 4)(−4,8)
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4. Alyssa made the design shown below. Which transformation could be used to show that gure A is congruent to gure B? A. add 5 to each x-coordinate B. multiply each y-coordinate by 1 C. multiply each x-coordinate by 1 D. rotate the gure 90 degrees about the origin
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Congruence and Similarity 14.2 Dilations MathLinks: Grade 8 (Student Packet 14) 5 DILATIONS Summary (Ready) We will experiment with dilations and explore properties of dilations. Goals (Set) • Perform a dilation experiment. • Find the center point and scale factor of a dilation. • Explore properties of dilations. Warmup (Go)
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I can describe the effect of dilations of two-dimensional figures using coordinates. Answer: 1: Bigger 2: Smaller 3. Stay the Same 4. Smaller Warm Up - Bigger or Smaller: Directions: For each dilation below decide whether the scale factor would produce a bigger image, smaller image, or the image would stay the same. ...
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Geometry Honors Unit 3: Similar Figures and Dilations 3.2 –Dilations Target 2 – Perform and identify dilations Vocabulary Dilation-A transformation in which a polygon is _____ or _____ by a given linearscale factorusing a centered_____.
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