SWBAT: Find the area of a trapezoid and a rhombus.

Slides:

Advertisements

Similar presentations

Parallelogram A quadrilateral with both pairs of opposite sides parallel *opposite sides are congruent *opposite angles are congruent *diagonals bisect.

Advertisements

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals

Circle – Formulas Radius of the circle is generally denoted by letter R. Diameter of the circle D = 2 × R Circumference of the circle C = 2 ×  × R (

Area of Quadrilaterals

Areas of Rectangles and Parallelograms Areas of Triangles, Trapezoids and Kites.

3.3b: Area and Perimeter M(G&M)–10–6 Solves problems involving perimeter, circumference, or area of two dimensional figures (including composite figures)

7.4 Areas of Triangles and Quadrilaterals

Chapter 6+. The opposite sides of a parallelogram are __________ and __________.

TODAY IN GEOMETRY…  Review: Pythagorean Theorem and Perimeter  Learning Target: You will find areas of different polygons  Independent practice.

Review: Area and Perimeter. Definitions 1. What is a polygon? 2. What does perimeter mean? 3. What does area mean?

Area of Trapezoids. A trapezoid can be thought of as half of a parallelogram also. Notice that when we put the 2 trapezoids together we get a parallelogram.

Jeopardy $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300

A tangram is an ancient Chinese puzzle made from a square

Unit 10 Review Area Formulas. FOR EACH FIGURE: IMAGINE the shape THINK of its AREA FORMULA.

Intro to Geometry in 2D These are your notes for Area of 2 Dimensional figures…Write & Draw EVERY detail as if I was at the front of class. Write down.

Warm-Up Find the area and perimeter of the rectangle

Developing Formulas for Triangles and Quadrilaterals

Finding the Area of Polygons Vocabulary Perimeter – The sum of all sides of the shape. Area – The total occupied space of a shape in units squared.

Geometry Review. Name that Shape… Rectangle Name that Shape… hexagon.

CHAPTER 23 Quadrilaterals. Special Quadrilaterals 1. Square a) All sides are the same length b) All angles are the same size (90°) c) Its diagonals bisect.

The perimeter of a triangle is the measure around the triangle = a + b + c.

Areas of Parallelograms and Triangles

3.1b: Area and Perimeter - Quadrilaterals and composite shapes

Areas of Parallelograms, Triangles and Trapezoids

A Four Sided Polygon! 1.BOTH pairs of opposite sides are parallel 2.BOTH pairs of opposite sides are congruent.

Activity In your group, you will be given a card. You will be using a Bubble Map to describe the shape. In the middle of the Bubble Map, please draw the.

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals.

Finding the area of a Trapezoid

Perimeter and Area. PowerPoint created by Parsheena Berch Resource: JBHM material Pictures: Google Images.

Quadrilaterals and Triangles Part One: Rectangles, Squares.

Area Formulas Rectangle What is the area formula?

Name That Quadrilateral  Be as specific as possible.  Trapezoid.

Review: Area of 2-D Shapes Keystone Geometry.

10-2 Areas of Trapezoids, Rhombuses & Kites Objective: To find the area of a trapezoid, rhombus or kite Essential Understanding You can find the area of.

Triangle Discoveries Work with a part to see what discoveries can you make about triangles.

Do Now What are the following formulas? Area of a Square: Area of a Rectangle: Area of a Parallelogram: Area of a Triangle: Area of a Trapezoid: Area of.

 Hexagons have 6 sides and 6 angles and vertices.

Area & Perimeter of Triangles. The formula for a triangle can be determined from using parallelograms. Cut a parallelogram in half it forms 2 triangles.

Practice with Perimeter & Area

A parallelogram with opposite equal acute and obtuse angles and four equal sides. Diagonals 4 equal sides.

6.4 Areas of Other Figures Find the area of a trapezoid and irregular figures by using formulas of familiar figures.

Area & Perimeter Learning Objectives: 1.Learn to find perimeter and area of simple & compound/composite shapes. 2.Practice solving problems involving area.

Parallelograms Lesson 10.3 Areas of Parallelograms and Triangles SWBAT: Develop, state & apply formulas for area of parallelograms and triangles.

9.1 PERIMETER AND AREA OF PARALLELOGRAMS Objective: Students find the perimeter and area of parallelograms.

Chapter 10 Area Section 10.1 Areas of Parallelograms and Triangles.

Holt McDougal Geometry 10-1 Developing Formulas Triangles and Quadrilaterals 10-1 Developing Formulas Triangles and Quadrilaterals Holt Geometry Warm Up.

Holt McDougal Geometry 10-1 Developing Formulas Triangles and Quadrilaterals 10-1 Developing Formulas Triangles and Quadrilaterals Holt Geometry Warm Up.

Area Formulas Rectangle What is the area formula?

Sect. 6.7 Areas of Triangles and Quadrilaterals Goal 1 Using Area Formulas Goal 2 Areas of Trapezoids, Kites and Rhombuses.

Unit 8 – 3 Finding Perimeter and Area Regular polygons and simple shapes with algebraic expressions.

Area of Triangles and Trapezoids

Objectives Develop and apply the formulas for the areas of triangles and special quadrilaterals. Solve problems involving perimeters and areas of triangles.

10-1 Developing Formulas Triangles and Quadrilaterals Warm Up

Section 11-5: Areas of Triangles & Trapezoids

Area of a Rectangle = base x height

The size of a surface in square units

Area of Quadrilaterals

Objectives Develop and apply the formulas for the areas of triangles and special quadrilaterals. Solve problems involving perimeters and areas of triangles.

Properties of Geometric Shapes

UNIT 8: 2-D MEASUREMENTS PERIMETER AREA SQUARE RECTANGLE PARALLELOGRAM

Objectives Develop and apply the formulas for the areas of triangles and special quadrilaterals. Solve problems involving perimeters and areas of triangles.

Class Greeting.

6.6 Special Quadrilaterals

Lesson 9-1 Area of 2-D Shapes.

Areas of Quadrilaterals and Triangles

Lesson 9-1: Area of 2-D Shapes

Area of a a parallelogram

Presentation transcript:

SWBAT: Find the area of a trapezoid and a rhombus.

 Using two 3 x 5 note cards, cut along a line from one vertex to the opposite side.  Discard the two triangles that you cut off.  What new shapes did you create?  How do they compare?  Label the height and the two bases of the trapezoids.  Put the two edges labeled height together.  What new shape is created?  How does the area of one trapezoid compare to the area of the parallelogram?

 Where base and height are perpendicular!  Examples: 1)2)

3) Find the height of a trapezoid that has an area of 50 square yards and bases of 8 yards and 12 yards.

 For the shape below, how can we find the area using triangles? h1h1 h2h2 A D C B If the diagonals of a quadrilateral are perpendicular, the area is one half the product of the diagonals.

4) Find the area.5) A rhombus with a 20 cm diagonal has an area of 300 sq cm. Find the perimeter of the rhombus.

 Write the formulas from today’s notes on top of your paper.  10.4 ex , 22, 24, 26, 35, 36