Course 1 8-9 Congruence 8-9 Congruence Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

Slides:

Advertisements

Similar presentations

Holt CA Course Classifying Quadrilaterals Warm Up Warm Up California Standards Lesson Presentation Preview.

Advertisements

8.9 Congruent Polygons I can identify congruent figures and use congruence to solve problems.

8-9 Congruent Polygons Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

Date: Topic: Congruent Figures (6.6) Warm-up Construct a segment congruent to Construct an angle congruent to.

Picturing Polygons Review. Definitions:  What is a polygon?  A. A shape with lines  B. A closed figure made up of at least 3 straight sides  C. A.

Do Now True or false? 1. Some trapezoids are parallelograms.

Warm Up The lengths of three sides of a triangle are given. Classify the triangle , 12, , 10, , 15, 26 equilateral scalene isosceles.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Congruence and Similarity

Classifying Quadrilaterals

MG2.3 Draw quadrilaterals and triangles from given information about them (e.g., a quadrilateral having equal sides but no right angles, a right isosceles.

Ch 7 Learning Goal: PLANE GEOMETRY Learn to describe the figures by using the terms of geometry (7-1) Learn to name, measure, classify, estimate and draw.

Isosceles Triangles Section 4.3.

Course Polygons 8-7 Polygons Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

Recognize congruent and similar figures. Find the scale factor of similar figures. Similar & Congruent Figures.

Preview Warm Up California Standards Lesson Presentation.

Section 4.2 Congruence and Triangles. Two figures are congruent if they have exactly the same size and shape.

Quadrilateral Properties

A plane figure with four sides and four angles.

6 th Grade Math Homework Chapter 7.9 Page #1-6 & SR Answers.

9-2 Area of Triangles and Trapezoids Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

4.4 What Information Do I need? Pg. 14 Conditions for Triangle Similarity.

Definition: Rectangle A rectangle is a quadrilateral with four right angles.

Picturing Polygons Review. Definitions:  What is a polygon?  A. A shape with lines  B. A closed figure made up of at least 3 straight sides  C. A.

Congruent Polygons Sec 6.5 GOALS: To identify congruent polygons.

7-5 Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Congruent Figures Figures are congruent if they are exactly the same size and shape. These figures are congruent because one figure can be translated onto.

Holt CA Course Classifying Polygons Warm Up Warm Up California Standards Lesson Presentation Preview.

Lesson 6.3/6.4 Objective: To find the two missing lengths of a 30°- 60°- 90°triangle. To classify four sided polygons. In a 30°-60°-90° triangle, The hypotenuse.

Properties of Quadrilaterals SOL 6.13

8-5 Classifying Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

 When figures have the same size and shape we say they are congruent.  In this lesson I will focus on congruent triangles.

BELL RINGER (THINK, PAIR, SHARE) 1. List as many properties as you can about the sides, angles, and diagonals of a square and a rectangle.

Unit 1 Transformations Day 5.  Similar Polygons - Two figures that have the same shape but not necessarily the same size ◦ Symbol: ~ ◦ Similar Polygons.

8-8 Angles in Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Quadrilaterals Lesson 11 – 5. Quadrilateral Def: a 4 sided polygon. or ‘ a figure with 4 sides and 4 angles’ **The SUM of the 4 angles must equal 360º**

QUADRILATERALS SPI: Identify, define or describe geometric shapes given a visual representation or written description of its properties.

 2.5: Similar Figures. What is a Similar Figure?  Figures that have the same shape, but not necessarily the same size.  Two figures are similar when:

6.7 Area of Triangles and Quadrilaterals Area Postulates: Postulate 22 Area of a Square: The area of a square is the square of the length of its side,

7-7 Quadrilaterals Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

7-7 Quadrilaterals Warm Up Problem of the Day Lesson Presentation

5.1 Exploring What Makes Triangles Congruent

Preview Warm Up California Standards Lesson Presentation.

Congruent and Similar Figures

Reflections 9-1 Warm Up Lesson Presentation Lesson Quiz

7-5 Polygons Course 2 Warm Up Problem of the Day Lesson Presentation.

8-7 Polygons Course 1 Warm Up Problem of the Day Lesson Presentation.

Reflections 9-1 Warm Up Lesson Presentation Lesson Quiz

EQUIVALENT FIGURES & SOLIDS.

Reflections Warm Up Lesson Presentation Lesson Quiz

Chapter 4 – Scale Factors and Similarity Key Terms

Ratios, Rates and Percents

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Lesson 8.5 Congruent Polygons

Similar Figures.

Classifying Quadrilaterals

Area of Triangles and Trapezoids

Reflections 9-1 Warm Up Lesson Presentation Lesson Quiz

5.2 ASA Triangle Congruence

12-1 Reflections Warm Up Lesson Presentation Lesson Quiz Holt Geometry.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Reflections 9-1 Warm Up Lesson Presentation Lesson Quiz

Lesson 10-5 Identify and Classify Quadrilaterals

Reflections Warm Up Lesson Presentation Lesson Quiz

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Reflections Warm Up Lesson Presentation Lesson Quiz

Angle and side Relationships

8-7 Polygons Course 1 Warm Up Problem of the Day Lesson Presentation.

Presentation transcript:

Course Congruence 8-9 Congruence Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day

Course Congruence Warm Up Solve  2 Course Congruence

Course Congruence Problem of the Day The sum of two decimals is 9.3; their difference is 4.3, and their product is What are they? 2.5, 6.8

Course Congruence Learn to identify congruent figures and to use congruence to solve problems.

Course Congruence Additional Example 1A: Identifying Congruent Figures These figures do not have the same shape and they are not the same size. These figures are not congruent. Decide whether the figures in each pair are congruent. If not, explain.

Course Congruence Additional Example 1B: Identifying Congruent Figures Decide whether the figures in each pair are congruent. If not, explain. These figures have the same shape and size. These figures are congruent.

Course Congruence Additional Example 1C: Identifying Congruent Figures Decide whether the figures in each pair are congruent. If not, explain. Each figure is a trapezoid. The corresponding sides are 5.7 in., 7.5 in., 5 in., and 10 in. These figures are congruent.

Course Congruence Additional Example 1D: Identifying Congruent Figures Decide whether the figures in each pair are congruent. If not, explain. Each figure is a rectangle. Each short side of each rectangle measures 4 cm. Each long side of each rectangle measures 9 cm. These figures are congruent.

Course Congruence Check It Out: Example 1A Decide whether the figures in each pair are congruent. If not, explain. These figures do not have the same shape and they are not the same size. These figures are not congruent.

Course Congruence Check It Out: Example 1B Decide whether the figures in each pair are congruent. If not, explain. These figures have the same shape and size. These figures are congruent.

Course Congruence Check It Out: Example 1C Decide whether the figures in each pair are congruent. If not, explain. Each figure is a triangle. The corresponding sides are 3 cm, 4 cm, and 5 cm. These figures are congruent. 3 cm 4 cm 5 cm

Course Congruence Check It Out: Example 1D Decide whether the figures in each pair are congruent. If not, explain. Each figure is a rectangle. Each short side of each rectangle measures 5 in. Each long side of each rectangle measures 12 in. These figures are congruent. 12 in. 5 in.

Course Congruence Additional Example 2: Consumer Application Jodi needs a sleeping pad that is congruent to her sleeping bag. Which sleeping pad should she buy? Both sleeping pads are trapezoids. Only sleeping pad B is the same size as the sleeping bag. Which sleeping pad is the same size and shape as the sleeping bag? Sleeping pad B is congruent to the sleeping bag.

Course Congruence Check It Out: Example 2 Tomi needs a frame that is congruent to her flag. Which frame should she buy? Both frames are triangles. Only Frame B is the same size as the flag. Which frame is the same size and shape as the flag? Frame B is congruent to the flag in. 7.8 in. 4 in. 10 in in. 7.8 in. 9.2 in. 4 in. Flag Frame A Frame B

Course Congruence Lesson Quiz True or false? 1. If two figures have sides of the same length, they are congruent. 2. Congruent figures have angle measures that are equal. 3. Decide whether the figures are congruent. If not, explain. true false No, both are quadrilaterals but they are not the same size or shape.