Page 70 A dilation has been performed enlarging Triangle ABE into Triangle ADC. A dilation has been performed enlarging Triangle ABE into Triangle ADC.

Slides:

Advertisements

Similar presentations

# 16 Dilation benchmark M. A. 7. 8

Advertisements

Proving the Distance Formula

Adapted from Walch Education Investigating Scale Factors.

Rotational Symmetry Students will be able to identify rotational symmetry. Students will be able to predict the results of a rotation and graph rotations.

Slope and similar triangles

Investigation 4 Dilations and Similar Figures

Geometry: Dilations. We have already discussed translations, reflections and rotations. Each of these transformations is an isometry, which means.

A right triangle is shown below. The triangle is dilated by a scale factor of 3.5 to create a new triangle. What is the area of the new triangle? A. 24.

Dilations Shape and Space. 6.7 cm 5.8 cm ? ? Find the missing lengths The second picture is an enlargement of the first picture. What are the missing.

Shape and Space Dilations The aim of this unit is to teach pupils to:

2.7: Dilations.

Reductions, Enlargements and the Scale Factor Now if the red square is the original drawing, what is the blue square called? What is the yellow square.

Dilations in the Coordinate Plane

Similar Figures and Scale Drawings

Objective Identify and draw dilations..

Gradient between two points The gradient of a line is the slope of the line. The gradient is the ratio of the rise to the run of the line. We use the letter.

Finding the distance between two points. (-4,4) (4,-6)

Lesson 4.1 Read through and highlight all vocabulary.

Chapter 9: Transformations

Materials Reminders. Get out your agenda if you see your name below. I would like to have you in my FLEX Wednesday. Period 2Period 7.

7-2: Exploring Dilations and Similar Polygons Expectation: G3.2.1: Know the definition of dilation and find the image of a figure under a dilation. G3.2.2:

6.7 – Perform Similarity Transformations A dilation is a transformation that strethes or shrinks a figure to create a similar figure. A dilation is a type.

1. Prove if the 2 triangles are similar.. 2. The length and width of a rectangle are 5 feet and 2 feet, respectively. A similar rectangle has a width.

Dilation: a transformation that produces an image that is the same shape as the original, but is a different size. A dilation stretches or shrinks the.

Enlargement Simple scale factors. Find the scale factor and the missing length ?

Introduction To Slope.

Graphing polygons on the coordinate plane.

Warm Up – Tuesday, August 19th

The General Equation of a straight line

Module 11 So Far… Dilation is a transformation that makes an image that is the same shape, but may be a different size “Length” could be side length or.

DO NOW Directions (Part 1):

Do Now Monday, October 23, 2017  Write on Lined Page Between S. 55-S

8.2.7 Dilations.

Distance y x C D A B Lengths parallel to the axes are calculated as if it was a number line. Lengths are always positive. Examples 1) Calculate the length.

Drawing an irrational length line

Lesson 15 Linear Equations The Slope Formula.

DO NOW Directions (Part 1):

6.7 – Perform Similarity Transformations

SLOPE = = = The SLOPE of a line is There are four types of slopes

ENGN103 Engineering Drawing

7-1 Vocabulary Ratio Proportion Extremes Means Cross products.

Dilation Definition of Dilation

Enlarge the figure by a scale factor of 2 from the origin.

9-5: Dilations.

Slope and similar triangles

Turn to Page S.35.

A’ B’ D’ C’ Draw a Point at the center of dilation (Point P).

Students will be able to dilate shapes

Make your new weekly Warm up Page

Introduction A figure is dilated if the preimage can be mapped to the image using a scale factor through a center point, usually the origin. You have been.

Dilations Objectives:

DO NOW ? 20 ft Directions (Part 1): Directions (Part 2):

4.5 Vocabulary dilation center of dilation enlargement reduction

Dilation 8/29/30 Objective: To dilate a figure using a

Dilations Objective:.

Make your new weekly Warm up Page

Bonds to 10 and 100 Hint: Use your bonds to 10 to work out bonds to – 5 =  10 – 8 =  10 – 3 =  10 – 10 =  100 – 30 =  40 +  = – 90.

Geometry Section 9.7.

Dilations on the Coordinate Plane

2.7 Dilations Essential Question: How do you dilate a figure to create a reduction or enlargement?

Identify and graph dilations

Right Triangles with an altitude drawn.

Unit 1 Transformations in the Coordinate Plane

Page 70 Name ALL triangles that are congruent to TRIANGLE DJI.

Pages Draw a Point at the center of dilation (Point P).

Draw in a slope triangle from (0,0)

Presentation transcript:

Page 70 A dilation has been performed enlarging Triangle ABE into Triangle ADC. A dilation has been performed enlarging Triangle ABE into Triangle ADC. Draw Rays through AC and AD from Center A. Find the Scale Factor used in the dilation taking Triangle ABE into Triangle ADC.

Page 71  Change the coordinates to those shown in red. (2, 1.5) (16, 12) (12, 8)

Page 76 5 1 1 7 x y x y x First x value y First y value FORMULA TO CALCULATE SLOPE OF A LINE USING TWO POINTS m = slope x y x y 1 1 2 2 x First x value y First y value 1 1 x Second x value y Second y value 2 2 5 1 7 1

Page 76 HINT: Look back to problem 11.2 on page 71.

Page 77 How did Mai calculate her slope of 6/4? How did Elena calculate her slope of 1.5?

Page 78 If the dilation sends A to B, which way is the ray traveling? If the dilation used a scale factor of 2, what did that do to the length from the center to A? C

Page 80

3. Page 82

Page 83