Scale Factor TeacherTwins©2014.

Slides:

Advertisements

Similar presentations

Lesson 6.5 Scale Drawings Students will be able to understand ratios and proportions in scale drawings.

Advertisements

Unit 6: Scale Factor and Measurement

Scale Drawings and Scale Models

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.

Problem of the Day 1) Find the Length of the missing side.

Similar Shapes and Scale Drawings

Scale Drawings & Scale Factor

Over Lesson 6–5 A.A B.B C.C D.D 5-Minute Check 1 Write a proportion. Then solve. 18 donuts in 3 boxes, 30 donuts in b boxes There are approximately 2.54.

Scale Drawings & Models

Scale Drawings & Proportions

Similar Shapes and Scale Drawings

Use scales to find missing parts: maps blueprints models

Scale Drawings & Scale Factor

Scale Drawings and Scale Models

4-2(B) Scale Drawing.

Unit 3, Lesson 7: Scale Drawings. Scale drawings are used to represent objects that are either too large or too small for a life size drawing to be useful.

= = Proportions A proportion is an equation that states

Find Actual Measurements

Scale Drawings & Models

Scale Drawing and Models

Scale Drawings and Models

Extension 3.6 Proportions and Similar Figures A.What do you know about similar triangles and congruent triangles? B.Definitions 1.Similar triangles – have.

Bell Work: The area of the hexagonal base of a pyramid is 18√3. the height of the pyramid is 12. what is the volume?

 Two figures are similar if…  1.) Their corresponding angles are congruent  2.) The corresponding sides are PROPORTIONAL!!! 5 in A B C D 4 in 10 in.

Ms. Cuervo CAHSEE Prep SCALE DRAWINGS. What Are Scale Drawings? Since it is not always possible to draw on paper the actual size of real- life objects.

Section 6.6 Scale Drawings

Scale Drawings.

Splash Screen. Lesson Menu Five-Minute Check (over Lesson 6–6) Then/Now New Vocabulary Key Concept: Similar Triangles Example 1: Find Measures of Similar.

Lesson 7-4 Pages Scale Drawings Lesson Check 7-3.

2.4 Applications of Ratios Mme DiMarco.  Learning Goal: Use ratios to solve problems Learning Goal.

Holt Geometry 7-5 Using Proportional Relationships Warm Up Convert each measurement ft 3 in. to inches 2. 5 m 38 cm to centimeters Find the perimeter.

Similar Shapes and Scale Drawings

Holt Geometry 7-5 Using Proportional Relationships Warm Up Convert each measurement ft 3 in. to inches 2. 5 m 38 cm to centimeters Find the perimeter.

Holt McDougal Geometry 7-5 Using Proportional Relationships Warm Up Convert each measurement ft 3 in. to inches 2. 5 m 38 cm to centimeters Find.

Warm up!. Scale drawings are enlarged or reduced drawings that are similar to an actual object or place. – The ratio of a distance in the drawing to the.

Warm Up Convert each measurement ft 3 in. to inches

Scale Drawings and Scale Models

Chapter 6 Lesson 3 Scale Drawings & Models pgs

Chapter 6 Lesson 3 Scale Drawings & Models pgs

7.5(A) Generalize the critical attributes of similarity, including

Using Proportional Relationships

Scale Drawings TeacherTwins©2014.

Objectives Use ratios to make indirect measurements.

A man who is 6 feet tall is standing near a cactus

Scale Drawing/Scale Models

Chapter 6 Lesson 3 Scale Drawings & Models

Scale Drawings & Models

7.G.1 Scale Drawings Review

11/16 Scale Drawings and Scale Factor

Scale Drawings Bell Ringers

Using Proportional Relationships

Area of Circles TeacherTwins©2014.

Scale Drawings & Scale Factor by Luther Allen, M.Ed

Maps and scale drawings are:

= Divide each measure by the GCF, 3. drawing length actual length

Scale Drawings and Scale Models

Circumference TeacherTwins©2104.

Scale Drawings & Scale Factor by Luther Allen, M.Ed

Chapter 6 Lesson 3 Scale Drawings & Models pgs

Scale Drawings & Scale Factor

Scale Drawings and Scale Models

Scale Drawings & Models

AIM 7-5: How can we use ratios to make indirect measurements?

Scale Drawings & Scale Factor

Goal: The learner will use proportions to find measures of objects.

Scale Drawings & Models

Unit 4A Geometric Figures Lesson 4 Scale Drawings

Presentation transcript:

Scale Factor TeacherTwins©2014

Warm Up Solve each problem. Show all work. 1). Jon’s bedroom is 12 meters in width. On a scale drawing his bedroom is 1.5 cm. What is the scale of the drawing? 2). Stowe wants to make a drawing of his car using the scale 1 inch = 3 feet. If his car is 12 feet long, how long will it be on his drawing? 3). Kim looks at a map and discovers that the distance from her house to the mall is 5 miles. If the scale used for the map is 1/2 inch = 2 miles, what is the distance on the map? 1 cm = 8 meters 4 inches 1.25 or 1 ¼ inch

Flippable

Example: 2 inches = 16 inches The scale factor is 2/16 or 1/8. The ratio of a length on a scale drawing or model to the corresponding length on the real object is called the scale factor. Scale factor is the number you multiply by to either increase or decrease the size of a figure. Example: 2 inches = 16 inches The scale factor is 2/16 or 1/8. You put it in the same unit to get the scale factor.

What is the scale factor? Example 1: A scale drawing of a garden has a flower bed that is 6.5 inches in length. The scale that was used for the drawing is 1 inch = 2 feet. What is the scale factor? This means that the drawing is 1/24 the size of the real garden. The garden is 24 times the scale drawing of the garden.

The car is 150 times the size of the scale drawing. Example 2: What is the scale factor of a drawing of a car, that has a scale of 2 cm = 3 m? How much larger is the car than the drawing? The car is 150 times the size of the scale drawing.

In your own words explain what scale factor is. Closure In your own words explain what scale factor is.