Two-Dimensional Geometry

Slides:



Advertisements
Similar presentations
Perimeter and Area of 2D Shapes
Advertisements

9-4 Perimeter and Area in the Coordinate Plane Warm Up
Students will name two dimensional figures (9-4).
Classifying Polygons Objective; I can describe a polygon.
Plane Shapes Plane Shapes Two-Dimensional Shapes.
Perimeter Is the sum of the lengths of the sides. When solving a perimeter problem, it is helpful to draw and label a figure to model the region.
Two - Dimensional Shapes
Area & Perimeter.
MATH 3A CHAPTER NINE PERIMETER AND AREA. LEARNING TARGETS AFTER YOU COMPLETE THIS CHAPTER, YOU WILL BE ABLE TO: CALCULATE PERIMETERS FOR REGULAR AND IRREGULAR.
Polygons and Special Quadrilaterals (4/14/05) Check homework on board Ask homework questions Presentation “Game Time” Homework is worksheet.
© 2010 Pearson Prentice Hall. All rights reserved. CHAPTER 10 Geometry.
Whole Class Review Activity Geometry Directions: 1. Review questions have been written. 2. Click the Spin Button. 3. When the wheel stops, click to view.
Finding the area of a trapezoid 6.G.A.1 Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles.
Changing Dimensions What’s the effect on Perimeter and Area??
 Area of Polygons SECTION 5.03.
Area of a Rectangle A=LW Length times Width Length width = 20 cm =12 cm A=20 12 A=240 cm 2.
POLYGONS & QUADRILATERALS
Lesson Topic: Drawing Polygons on the Coordinate Plane Lesson Objective: I can…  Given coordinates for the vertices, I can draw polygons in the coordinate.
+ Introduction to Shapes Squares and Rectangles. + Do Now: Chalk Talk.
6.G.A.1 Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles.
1/28/ : Area of Polygons1 10-3: Area of Parallelograms G1.4.1: Solve multistep problems and construct proofs involving angle measure, side length,
Perimeter & Surface Area Today’s lesson will cover…  finding perimeter and surface area of polygons  using formulas to solve problems involving surface.
PLOYGONS!! By:edilberto zeferino!!. Right Triangle Equilateral Triangle.
Year 7: Length and Area Perimeter The perimeter of a shape is the total distance around the edge of a shape. Perimeter is measured in cm A regular shape.
ShapesSidesVerticesAnglesParallelLinesGeometricLanguage.
Area of shapes and in a coordinate plane Chapter 8-3.
Section 10.3 Polygons and Perimeter Math in Our World.
9.1 PERIMETER AND AREA OF PARALLELOGRAMS Objective: Students find the perimeter and area of parallelograms.
Unit 8 – 3 Finding Perimeter and Area Regular polygons and simple shapes with algebraic expressions.
CLASSIFYING POLYGONS Unit 1 Lesson 6. Classifying Polygons Students will be able to: Identify the 2-dimensional shapes based on their properties. Key.
3rd Grade Module 5 Which properties do a rectangle and a square share?
Objectives Develop and apply the formulas for the areas of triangles and special quadrilaterals. Solve problems involving perimeters and areas of triangles.
Warm Up Find the unknown side length in each right triangle with legs a and b and hypotenuse c. 1. a = 20, b = b = 21, c = a = 20, c = 52.
8th Grade Math Unit 8 Review
A polygon is a geometric figure with three or more sides.
Area of 2-Dimensional Figures
Find the area of the triangle. POLYGONS Find the area of the triangle.
Graphing polygons on the coordinate plane.
Geometry/Quadrilateral Task Cards
By Miss Jamison and Mrs. Bufkin
A World of Shapes By Nada Allen.
Whiteboardmaths.com © 2004 All rights reserved
Polygons, Perimeters, and Tessellations
Triangle Vocabulary Equilateral:
The rectangle is split into 5 equal parts
The rectangle is split into 4 equal parts
Polygons and Quadrilaterals
Splash Screen.
Geometry/Quadrilateral Task Cards
6.1 Notes: Angles of Polygons
All sides have the same length and angles have the same measure.
9-1 C and D: Area of Triangles and Trapezoids
BELL WORK.
Splash Screen.
Polygons What? Closed figure; 3 or more line segments that do not cross Name a Polygon Count the number of sides 3 - Triangle 4 - Quadrilateral.
Week 7 Targeted Standards Review
Warm Up Problem Find the area of the trapezoid..
Unit 10: 2-Dimensional Geometry
Splash Screen.
Names & Properties of 2D Shapes
Area of Parallelogram.
3rd Grade Math Module 7 Lesson 7
Shapes Polygons and Quadrilaterals
Area & Perimeter.
By 2-D shapes.
Study Guide Answers Review Questions
Wreck Tangles Squares Parallel O’grams Try Angles Trap a Zoid 1 pt
Solving for the Area of Composite Figures (Rectangles and Triangles)
CHAPTER 10 Geometry.
Presentation transcript:

Two-Dimensional Geometry Review and practice

Homework Check 3. 5. 7. 60.8 mm2 186 cm2 127.5 m2

Review of Polygons What is a polygon?

Review of Polygons What does that mean?

Review of Polygons What do you need to know? You must know how many sides each polygon has using the names highlighted above!

Review of Polygons What are regular polygons? These are the polygons that you are used to seeing. All angles are equal and all sides are equal..

Review of Polygons Now You Try! Name the shape. Indicate if it is regular or not regular (irregular). 1 2 3 Hexagon Not Regular Pentagon Regular Hexagon Not Regular

Learning Goal 610: Solve real-world and mathematical problems involving area. Learning Objective One: I can draw polygons on the coordinate plane when given the vertices.

Show all work neatly and completely to justify your answer. Learning Objective One: I can draw polygons on the coordinate plane when given the vertices. Amelia is making a drawing to determine the length of a fence needed to go around her garden. Using the given coordinates, draw an outline of her garden (polygon ABCDEF) and determine the total length of fencing needed. Show all work neatly and completely to justify your answer.  A (6, 3) B (6, - 4) C (-10, - 4) D (-10, 7) E (- 5, 7) F (- 5, 3)

Is there another way to determine the perimeter?

Learning Goal 610: Solve real-world and mathematical problems involving area. Learning Objective Two: I can find the length of a side of a polygon graphed on the coordinate plane.

Learning Objective Two: I can find the length of a side of a polygon graphed on the coordinate plane. The coordinates of the vertices of polygon EFGH are: E (-5.5, 4) F (-2, 8.25) G (2.5, 4) H (-2, -7.75) Graph the polygon and label the vertices. Find the length of each diagonal ( 𝐸𝐺 and 𝐹𝐻 ). Show your work clearly or explain how you found the lengths.

Learning Goal 610: Solve real-world and mathematical problems involving area. Learning Objectives Three, Four and Five: I can determine the area of squares and rectangles. I can calculate the area of triangles. I can calculate the area of special polygons by breaking the polygon into familiar shapes.

Learning Objectives Three, Four and Five: I can determine the area of squares and rectangles. I can calculate the area of triangles. I can calculate the area of special polygons by breaking the polygon into familiar shapes. Find the area of the trapezoid and the parallelogram by composing into rectangles or decomposing into triangles or other shapes as needed. Show your work neatly and completely. 168 yd2 105 cm2

Learning Goal 610: Solve real-world and mathematical problems involving area. Learning Objective Six: I can take everything I’ve learned about area and apply it to real-world situations.

Learning Objective Six: I can take everything I’ve learned about area and apply it to real-world situations. Mr. Moretti wants to cover the walkway around his swimming pool with tile. Determine how many square feet of tile he will need to cover the shaded portion of the diagram. Show your work neatly and completely.