Computing Actual Areas from a Scale Drawing.

Slides:

Advertisements

Similar presentations

X2 Enlargements from a Given Point A/ B/ D/ C/ A B D C

Advertisements

 Algebra 1 Remediation September 3 Start on page 208 of practice packet.

What is the true number of faces of a rectangular prism?

TRANSFORMATIONS Reflections Rotations Enlargements Translations.

Monday, 17 April 2017 Enlargements

RATIOS OF SCALE DRAWINGS. SCALE DRAWINGS SCALE DRAWINGS: A scale drawing is a drawing that represents a real object. The scale of the drawing is the ratio.

Scale Factor and Dilation

Surface Area and Volume

Is it a square or a cube? It is a cube It is a pyramid Is it a triangle or a pyramid?

9-7 Dilations Holt McDougal Geometry Holt Geometry.

Computing Actual Lengths from a Scale Drawing. Scale Where have you seen this term used? Scale is the ratio of size between the actual object and a model.

I can use proportions to solve problems involving scale.

Scale drawings. Scale drawings are used when it is unrealistic to think about drawing an object in its actual size; so we need to “scale” them down Observe…

Computing Actual Areas from a Scale Drawing

Computing Actual Lengths From a Scale Drawing Learning Target I can compute actual lengths in a picture using the scale.

Powers and roots. Square each number a) 7 b) 12 c) 20 d) 9 e) 40 a) 49 b) 144 c) 400 d) 81 e) 1600.

Similar Figures and Scale Drawings

Defining Success For Bigger or Smaller In this lesson we will: NxG M.7.G.1 - Solve problems involving scale drawings of geometric figures, including:

Perimeter Area Scale & Area Measuring & Formulas.

Calculating the area of a leaning triangle. Calculating Area.

Our Research Project Created By Mrs. Saracino Research? re search To look over carefully… To find something…

THINK LINE Imagine a line wrapped around the figure. Units are cm. ft. in. etc. 2 2 Perimeter is ONE DIMENSION DIMENSIONAL What is the Perimeter of.

Example 1 Writing Powers Write the product as a power and describe it in words. a. 44= to the second power, or 4 squared 9 to the third power,

Changes in scale.

Eisenberg/Robinson © 2007 Super 3 Introduction for students!

Exploring Similarity and Algebra Marian Small February, 2016.

Objective: To multiply binomials using Area Model.

Some Slides from Art Costa on Effective Questioning Challenge yourself to make thinking skill requirements specific to your students.

3 rd grade Math Practice Thinking Problems. Solve the problems in class. Bring the finished packet to the computer lab. In the computer lab you will use.

Graphical Analysis I Graphing Experimental Data. As a barge is loaded with more cargo Weight, the Depth that it sinks into the water changes. The table.

ODDS.  Another way to describe the chance of an event occurring is with odds. The odds in favor of an event is the ratio that compares the number of.

Proving Pythagoras’ Theorem and that ancient Greeks were pretty good at mathematics.

Interpreting line graphs Line graphs are an extremely useful way of visualising how something changes over time. What does this line graph show you? What.

Enlargement Simple scale factors. Find the scale factor and the missing length ?

A Model for Multiplication. Learning Targets I can estimate products of fractions. I can use an area model to represent multiplying of fractions. I can.

14.0 Math Review 14.1 Using a Calculator Calculator

Lesson 7-4 Pages Scale Drawings.

I Can Solve Problems Using Scale Drawings!

Scale Drawing/Scale Models

8.4 Volume and Areas of Similar Figures

25 Math Review Part 1 Using a Calculator

Area Ch. 5.3 EQ: How can you find the area of various shapes? I will find the area of various shapes.

Thursday, 13 September 2018 Enlargements

Name the shape below. rectangle rhombus square triangle A B C D

5.2 Velocity Vectors The resultant of two perpendicular vectors is the diagonal of a rectangle constructed with the two vectors as sides.

The Unit Square Saturday, 22 September 2018.

12.7 Dilations.

FP1 Matrices Transformations

What can we learn from careful reading of an image?

Transformations Example Draw the line Draw 1 at , ,

Transformations Draw and label axes from 0 to +10 on square paper

A scale drawing is a drawing in which all parts of the drawing are reduced or enlarged by the same scale factor. A scale is a ratio that compares the measurements.

Enlargements and area Scale factor Area of object Area of image.

12-7 Dilations Warm Up Lesson Presentation Lesson Quiz Holt Geometry.

What can we learn from careful reading of an image?

Transformations and Matrices

Scaled Drawings 7.07 Execute Scaled Drawings

CONCERNING BLESSINGS? THINKING ABOUT GIVING THANKS.

It’s Good to Be a Friend But how do I know if I am?

Dilation 8/29/30 Objective: To dilate a figure using a

Transformations: Enlargements

SPLITTING OF COMBINED SHAPES

Factoring Questions that Appear Difficult, but are Actually Slightly Easier If one factor of x2 + 3x – 18 is x + 6, what is the other factor?

Area Of Composite Shapes

2.7 Dilations Essential Question: How do you dilate a figure to create a reduction or enlargement?

Spatial Reasoning.

Spatial Reasoning.

Presentation transcript:

Computing Actual Areas from a Scale Drawing

Why do you think this is? Why do you think it is squared (opposed to cubed or something else)? How might you use this information in working with scale drawings?

Suppose a rectangle has an area of 12 square m. If it is enlarged by a scale factor of three, what area would you predict the enlarged rectangle to have based on these three examples. Look and think carefully!

When given a scale drawing, how do we go about finding the area of the actual object? Describe a situation where you might need to know the area of an object given a scale drawing or scale model?