9.4 Symmetry Brett Solberg AHS ‘11-’12.

Slides:

Advertisements

Similar presentations

Rotations. Rotate 90  Clockwise about the Origin (Same as 270  Counterclockwise) Change the sign of x and switch the order.

Advertisements

Warm Up Draw an example of a reflection: Draw an example of a figure that has one or more lines of symmetry: Find the new coordinates of the image after.

Line of Symmetry- a line on which a figure can be folded so that both sides match exactly.

Honors Geometry Transformations Section 1 Reflections.

Today – Wednesday, April  Checking for completion of Reflection Discovery WS  Warm Up: EOC Practice #5  Learning Target : Given a pre-image,

9.3 – Perform Reflections.

Pre-Algebra 5.8 Symmetry. Warm Up Identify each as a translation, rotation, reflection, or none of these. A. B. reflection rotation C. D. none of the.

Reflection and Rotation Symmetry

GEOMETRY (HOLT 9-5) K. SANTOS Symmetry. A figure has symmetry if there is a transformation (change) of the figure such that the image coincides with the.

Unit 5: Geometric Transformations.

Rigid Motion in a Plane 7.1.

Symmetry Figures are identical upon an operation Reflection Mirror Line of symmetry.

7-8 Symmetry Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

LINE SYMMETRY & REFLECTIONS. REFLECTION SYMMETRY  Have you ever made a simple heart shape by folding and cutting paper?  The heart is made by using.

9.5 & 9.6 – Compositions of Transformations & Symmetry

12.1 – Reflections 12.5 – Symmetry M217 – Geometry.

4.2 Reflections.

Warm up What type of transformation is shown? Write the algebraic representation. Write the coordinates of the original triangle after reflection over.

9. What is the measure of angle b? What vocabulary words apply to this Figure? 1) 2) A.1,2,and 3 B.1 and 2 C.1 and 3 D.2 and A point is located at.

Warm up 1.A function is even. Point A(-3, 4) is on the even function. Name another point. 2.A function is even. Point B(9, 2) is on the even function.

9.6 Warm Up Warm Up Lesson Quiz Lesson Quiz Lesson Presentation Lesson Presentation Identify Symmetry.

2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image.

Symmetry 12-5 I CAN Identify line symmetry, rotational symmetry, and

Warm Up Week 1. Section 7.3 Day 1 I will identify rotations in a plane. Ex 1 RotationA transformation in which a figure is turned about a fixed.

Holt McDougal Geometry Compositions of Transformations Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz Holt.

Warm Up Week 1. Section 7.2 Day 1 I will identify and use reflections in a plane. Ex 1 Line of Reflection The mirror in the transformation.

Warm Up 1.      360 Course Symmetry

Rotational Symmetry 3-2A What is rotational symmetry? How do you identify a figure that has rotational symmetry?

Symmetry LESSON 58DISTRIBUTIVE PROPERTY PAGE 406.

Geometry 7.1: Transformations GOAL: Learn the three major types of geometric transformations.

Geometry 4-3 Rotations.

Objective: Sequences of transformations.

Do-Now Find the value of x. A = 20 A = 35 x 4 x – 2 2x 3x A =

Do-Now Solve the system of equations. (2, –20) and (–1, –2)

Symmetry What is reflectional symmetry? What is rotational symmetry?

What is a glide reflection?

Line Symmetry and Rotational Symmetry

4.3 Rotations Goals: Perform Rotations

Transformations Example Draw the line Draw 1 at , ,

Reflections & Rotations

Warm-Up Triangle RST has vertices R(0,4), S(3,3), and T(1, 1). Choose the graph that correctly displays a translation along – 4, 0, and a rotation of.

Rotations Unit 10 Notes.

Symmetry Objective: Today, we will identify types of

Transformations Geometry

Warm-up 1/13/2019 Reflect the object across the y-axis. Translate the object 4 units right and 3 units up Rotate the object 270 degrees counter.

2.4 Symmetry Essential Question: How do you determine whether a figure has line symmetry or rotational symmetry?

9.5 : Symmetry I can identify line and rotational symmetries in two‐dimensional figures. I can identify plane and axis symmetries in three‐dimensional.

Rotation: all points in the original figure rotate, or turn, an identical number of degrees around a fixed point.

What would be the new point formed when you reflect the point (-2, 8) over the origin? If you translate the point (-1, -4) using the vector.

9.6 Identify Symmetry Mrs. vazquez Geometry.

DRILL What would be the new point formed when you reflect the point (-3, 5) over the origin? If you translate the point (-1, -4) using the vector.

Choose the correct translation from pre-image to image B

6.5 Rhombus and Kite Brett Solberg AHS ‘11-’12.

7.4 Distribution and Conjugates

Area of Regular Polygons

12.4 Cones, Spheres, and Pyramids

11.4 Translations and Reflections

9.1 Translations Brett Solberg AHS ‘11-’12.

Algebra II 3.7 Brett Solberg AHS ‘11-’12.

9.5 Dilations Brett Solberg AHS ‘11-’12.

Section 4.3 Rotations Student Learning Goal: Students will identify what a rotation is and then graph a rotation of 90, 180 or 270 degrees on a coordinate.

9.2/9.3 Transformation Brett Solberg AHS ‘11-’12.

Objective Identify and describe symmetry in geometric figures.

Honors Geometry Transformations Section 1 Reflections

Symmetry Objective: To identify reflectional (line), rotational, and point symmetry using reflections and rotations.

6.4 Special Parallelograms

Chapter 7 Transformations.

Transformations - Rotations

Presentation transcript:

9.4 Symmetry Brett Solberg AHS ‘11-’12

Warm-up Get out your notes and HW. Which HW problems should we review?

Today’s Agenda HW Review Quiz 9.4 Symmetry Line of Symmetry Point Symmetry Cumulative Review Corrected Next Class

Symmetry A figure has symmetry if a transformation can map the figure onto itself.

Line of Symmetry A line on a figure where each half is a mirror image of the other half.

Rotational Symmetry Any figure that can be rotated less than 360° and look the exact same as the original.

Line of Symmetry Draw all lines of symmetry

Rotational Symmetry Do the figures have rotational symmetry?

Practice

Assignment Finish 9.3 Worksheet 9.4 Worksheet