1 Perimeter Gosford Hill May 2010. 2 How Much Information?  How few rectangles needed to compose it?  Design a rectilinear region requiring –3 lengths.

Slides:

Advertisements

Similar presentations

List all of the factor pairs of 168 If these measures were the sides of a rectangle, which dimensions would give you the greatest area? Which dimensions.

Advertisements

Honors Geometry Section 5.1 Perimeter and Area

AB 11 22 33 44 55 66 77 88 99 10  20  19  18  17  16  15  14  13  12  11  21  22  23  24  25  26  27  28.

Perimeter and Area.

Area & Perimeter Area of a rectangle = Area of a triangle = Area of a parallelogram = Area of a trapezium =

Bell Ringers Week 3-4. Given that the area of a circle is square inches, what is the radius of the circle? a. 5 inches b. 10 inches c. 25 inches d. 625.

Area & Perimeter √ I CAN find area and perimeter of basic geometric figures.

Objective: Find the area of different quadrilaterals Level 6.

Geometry Formulas Section Formulas  Perimeter of a Triangle:  Area of a rectangle:  Volume of a box:

The distance around an enclosed shape is called the perimeter. The amount of space enclosed inside a shape is called the area.

Finding Factors Section What are factors? Factors are numbers that can be divided evenly into a larger number called a product. Example:1, 2, 3,

Solving systems of equations with 2 variables

Areas involving rectangles and triangles For each rectangle you must be able to spot the length and width For each triangle you must be able to spot the.

The circumference of the circle is 50  feet. The area of the shaded region = ________ example 1 :

Geometry Review AREA 1. Find the measure of each interior angle of the regular polygon shown below. 2.

Distribute and Combine Like Terms Applications. What is the area of the following shape? 5 2x-3 1.

Basic Measurement.

1 Coordinated Perimeters Based on an idea of Dan Meyer.

© T Madas. Find the mean percentage mark of 37%, 42%, 68%, 55% and 39%. Find of Find 7% of 675. Find the area of a triangle with base of 1.25.

Using Formulas Distributive Property LESSON 41POWER UP IPAGE 296.

RIGHT TRIANGLE CONGRUENCE WORKSHEET. RATIOS AND PROPORTIONS.

Perimeter is the distance around an object. If you started at one point and went all the way around until you got to where you started, the perimeter.

The length of a rectangle is twice the width. The perimeter is 72 inches. Find the length and the width of the rectangle.

What questions could we ask about this tile?. What if… We put 2 together?

Area & Perimeter An Introduction. AREA The amount of space inside a 2-dimensional object. Measured in square units cm 2, m 2, mm 2 Example: 1 cm 2 cm.

The figure is composed of a right triangle and a semi-circle. What is the area of the shaded region? The figure is not drawn to scale. 7 in 24 in.

Do Now: 1. Add: 2. Subtract: 3. Add: HW: p.56 # 14,16,18,20,24 p.75 # 6,10,12.

4.7 Triangle Inequalities

+ Pyramids and Prisms. + Solid An object with 3 Dimensions Height, Width, Length.

Bellwork Most Missed Quarter III Exam (58.9%): Find the perimeter of if AB = 16 cm, and.

Two sides of an isosceles triangle measure 3 and 7. Which of the following could not be the measure of the third side? A) 9 B) 7 C) 5 d) 3.

1 Thinking Algebraically & Geometrically John Mason University of Iceland Reykjavik 2008.

Pythagorean Theorem, Perimeter, Circumference, Area ….

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.

A B The points on the coordinate plane below are three vertices of a rectangle. What are the coordinates of the fourth vertex? C.

CHAPTER 7.1 RATIO AND PROPORTION. RATIO A ratio compares two numbers by division. The ratio of two numbers a and b can be written as a to b; a:b; or a/b,

PERIMETERS What is the Perimeter of a shape. What is the Perimeter of this rectangle? What is the Perimeter of this rectangle? 5cm 15cm.

1 Joined Up Reflections on Drawing to a Close John Mason April 2008.

Perimeter and Area of rectangles, parallelograms and triangles

LENGTH and PERIMETER.

Area of a Triangle.

simplify radical expressions involving addition and subtraction.

Perimeter Formula.

Let’s Get A Few Things Straight

Standard Form A number expressed in standard form is a number written between 1 and 10 multiplied by 10 to an appropriate power. The use of standard form.

LI: to calculate the perimeter of regular polygons.

Year 4 Autumn Block 3: Measurement, Length & Perimeter

Lesson 3: They Key to Perimeter and Area

11.3 – Perimeter and Area of Similar Figures

Obj: to use ratios to solve problems

Perimeter and Area of Rectangles on the Coordinate Plane

Upper and Lower Bounds.

Lesson 2.8 The Coordinate Plane

Objective - To identify how perimeter and area relate.

Algebraic Expressions

Use the substitution method to find all solutions of the system of equations {image} Choose the answer from the following: (10, 2) (2, 10) (5, - 2) ( -

Perimeters and areas of composite figures

1-5 Geometric Formulas Polygons

King of the Mountain.

2 types of scale factor problems

Section 11-1 Areas of Rectangles.

Every number has its place!

#17 PA8 Sem2 Practice Exam A #17 PA8 Sem2 Practice Exam B

Adding and Subtracting Radicals

By- Sabrina,Julianna, and Killian

Find the Perimeter.

Find the perimeter and area of each shape.

Starter Which of these shapes has the greatest perimeter?

Presentation transcript:

1 Perimeter Gosford Hill May 2010

2 How Much Information?  How few rectangles needed to compose it?  Design a rectilinear region requiring –3 lengths to find the perimeter and –8 lengths to find the area  How few rectangles needed to compose it?  How much information about lengths do you need in order to work out –the perimeter? –the area?

3 Two-bit Perimeters 2a+2b What perimeters are possible using only 2 bits of information? a b

4 Two-bit Perimeters 4a+2b What perimeters are possible using only 2 bits of information? a b

5 Two-bit Perimeters 6a+2b What perimeters are possible using only 2 bits of information? a b

6 Two-bit Perimeters 6a+4b What perimeters are possible using only 2 bits of information? a b

7 Which region looks to have … … the largest perimeter? … the smallest perimeter?