PPT-Scale Factor & Scale Drawings

All scale drawings must have a scale written on them Scales are usually expressed as ratios Normally for maps and buildings the ratio Drawing length Actual length For maps the ratio is normally in the ratio. Scale drawings of the crush are available on request There was a n article on this crush in the F armers Journal If anyone wants a copy of the art icle from that issue of the Farmers Journal please let me know The drawing is based on the actual crus Objective: . Dilation. What is a . Dilation. ?. A dilation is a transformation that changes the size but not the shape of the figure. . We use “ .  ” to identify new points. . A Dilation can enlarge or reduce a figure by a . Dilation. A dilation is a transformation in which a figure is enlarged or reduced with respect to a fixed point . C. called the center of dilation and a scale factor . k, . which is the ration of lengths of the corresponding sides of the image and . Taking a close look at the . Statue of Liberty. Statue of Liberty . She is big!. She weighs 450,000 pounds. Gift from France in late 1800’s. 154 steps from pedestal to head of statue. Scale. A comparison between the . actual size . of an object and the . size of its diagram/image. ; can be expressed as a ratio, fraction, percent, in words, or in a diagram. .. Ratio 1:2. Fraction ½ . All scale drawings . must . have a scale written on them. Scales are usually expressed as ratios.. Normally for maps and buildings the ratio:. Drawing length: Actual length. For maps the ratio is normally in the ratio:. Scale, Scale Factor, & Scale Drawings. Objective:. 7.2.01 & 7.3.03. Essential Question:. . How can I use a scale factor to understand distances on a map or the size of a house or object?. Vocabulary:. Textbook Pages 430-435. Objective. I can solve scale drawing problems using proportions.. Vocabulary. Scale Drawing: . is the same shape but not the same size. A map is a scale drawing. The units are very important.. Essential Question: . Do architects use the same scale factor for each room when designing a house? Why or why not?. Scale Drawing/Scale Models. Scale Drawings & Models are used to represent objects that are too large or too small to be drawn or built at actual size. Essential Question: . Do architects use the same scale factor for each room when designing a house? Why or why not?. Scale Drawing/Scale Models. Scale Drawings & Models are used to represent objects that are too large or too small to be drawn or built at actual size. Objectives. Specify the contents, formatting, and organization of engineering drawings. Correctly prepare and interpret formal, professional engineering drawings. Objectives (cont’d.). Discuss the primary differences between drawings used in manufacturing projects and those used in construction projects. Lesson 6: Scale Drawings and Models The floor plan below is an example of a scale drawing. A scale drawing is a diagram of an object in which the dimensions are in proportion to the actual dimensions of the object. Warm Up. Solve the proportions for x.. 2. . 4. . 5. . 6. .  . In Pete’s blueprint the length of a side wall is 16 inches. . . Find the . actual length . of the wall. .. The back wall of the house is 33 feet long. . Section 1: . What is a scale drawing?. Section 2:. Using proportions to find unknown quantities involving scale drawings.. Section 3:. Reproducing a figure using a scale.. Section 4:. Finding area and perimeter of shapes .