Do Now DWP #62. 3/16/15 8-3 B Quadrilaterals and Angle Sums.

Slides:

Advertisements

Similar presentations

Bake Sale Cara, Nick, and Tammy had 96 cookies (8 dozen) to sell at a bake sale. Tammy sold 32 cookies. Nick sold as many cookies as Tammy sold plus 5.

Advertisements

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

Polygons Not Polygons.

QUADRILATERALS Polygons with four sides and four angles.

PinpointingProperties. Trapezoids Make these trapezoids on your geoboard. How many sides? How many angles? Are any sides congruent? No sides are congruent.

Quadrilaterals Project

MEAP REVIEW. A polygon is a closed figure whose sides are made up of straight line segments that do not cross.

Quadrilaterals Polygons with four sides. Types of Quadrilaterals  Square: Quadrilateral with four equal sides and four right angles (90 degrees) Indicates.

Measuring Angles Discuss with your group what the following words mean and write them in your journal: Acute Angle Obtuse Angle Right Angle Straight Angle.

Proving That Figures Are Special Quadrilaterals

Geometry and English Language Learning

Polygons with 4 sides and 4 angles

Quadrilaterals.

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.

Lesson 10-4 Pages Quadrilaterals Lesson Check 10-3.

Do Now Find the value of x x + 10 = x = = 55 + x 4. x + 2x = 30.

The mathematical study of the properties, measurements, and relationships of points, lines, planes, surfaces, angles, and solids. Geometry.

Polygons – Parallelograms A polygon with four sides is called a quadrilateral. A special type of quadrilateral is called a parallelogram.

Quadrilateral Properties

10-5 Quadrilaterals Indicators  G2a- Determine one set of figures is a subset of another G2b- Develop a set of properties that eliminates all but the.

A plane figure with four sides and four angles.

POLYGONS & QUADRILATERALS

Exploring and Classifying Polygons and Quadrilaterals M6G1. Students will further their understanding of plane figures. Retrieved from:

Geometric Figures: Polygons.

Has 4 sides all side LENGTHS congruent  LENGTHS of opposite sides congruent  both opposite sides PARALLEL  all right ANGLES

Polygons with four sides

Polygons with four sides

Quadrilaterals I by Definition Polygon – a closed many straight- sided figure.

Definition Quadrilateral – a polygon with 4 angles and 4 straight sides.

Quadrilaterals ParallelogramsRectangleRhombusTrapezoids Isosceles Trapezoid Squares Orange Book Page 14: Do you know the tree?

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.

The quadrilateral is a parallelogram with 4 sides of equal length. So, it is a rhombus. EXAMPLE 1 Classifying a Quadrilateral Classify the quadrilateral.

Section 4.1: polygons.

Quadrilaterals Objective: Learn to name and classify quadrilaterals.

A quadrilateral is any 2- dimensional, four- sided shape.

Properties of Quadrilaterals SOL 6.13

Classifying Quadrilaterals Learning Target: I can classify quadrilaterals.

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.

Properties of Rhombuses, Rectangles, and Squares Lesson 8.4.

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.

CLASSIFYING QUADRILATERALS OBJ: TO DEFINE AND CLASSIFY SPECIAL TYPES OF QUADRILATERALS.

Always, Sometimes, or Never

Classifying Quadrilaterals

How Can You Tell That All Four of These Figures Are Quadrilaterals? What do they all have in common?

QUADRILATERALS.  A plane shape with four straight sides is called a quadrilateral.  We name quadrilaterals by looking at the properties of their sides.

Classifications Bowen’s Class. Quadrilateral Any four sided polygon Any four sided polygon.

Objective: Learn to name and classify quadrilaterals.

Exploring and Classifying Polygons

I can classify quadrilaterals by their properties.

Classifying Quadrilaterals

7.7.4 Quadrilaterals.

6-4 Properties of Rhombuses, Rectangles, and Squares

Quadrilaterals TeacherTwins©2014.

Ch 8 Quadrilaterals Foldable

A Parade of Four-Sided Polygons

Quadrilateral Definition: Any closed four-sided figure. Some Examples:

A plane figure with 4 sides and 4 angles

6.1 Classifying Quadrilaterals

Objective - To classify quadrilaterals.

Lesson 10-5 Identify and Classify Quadrilaterals

Classifying Quadrilaterals

Classifying Quadrilaterals

Objective: Learn to name and classify quadrilaterals.

Classifying Quadrilaterals

Quadrilaterals and other Polygons

Quadrilaterals Sec 12 – 1D pg

A Parade of Four-Sided Polygons

Presentation transcript:

Do Now DWP #62

3/16/ B Quadrilaterals and Angle Sums

5 Types of Quadrilaterals -closed figure with four straight sides 1.Parallelogram 2.Rectangle 3.Rhombus 4.Square 5.Trapezoid

Parallelogram Opposite sides parallel Opposite sides congruent Opposite angles congruent

Opposite sides parallel Opposite sides and angles congruent Four right angles Sound Familiar?

Rhombus Opposite sides parallel Opposite sides and angles congruent ALL SIDES congruent Sound Familiar?

Square A rectangle with four congruent sides

Trapezoid One pair of parallel sides (bases)

Fun Fact In every quadrilateral there are 2 Triangles!

The sum of the angles of a triangle is 180 degrees. ALWAYS!

Remember there are 2 triangles in a quadrilateral….

Using that information how could we find the angle sum of a quadrilateral?

There are two triangles... Because the sum of the angles of each triangle is 180 degrees... We get = 360 So, the sum of the interior angles of a quadrilateral is 360 degrees. ALWAYS!!!!!!

Again… The sum of the angles in any quadrilateral is always 360 o. We can use this fact to find missing angle measures in quadrilaterals.

Let’s Practice Ex. 1: Classify the figure. Find the missing angle measure.

Solution Ex.1 Trapezoid b = b = b = b = 94 o Let’s Check : = 360

Ex. 2 Classify the figure. Find the missing angle measure.

Solution Ex.2 Quadrilateral x = x = x = x = 114 o Let’s Check : = 360

Exit Ticket Pg. 470 # 1-10 Odds

Homework Pg. 470 #1-30 Evens