Similar Figures and Proportions. Warm-Up. Determine whether the ratios are proportional. 1. 5 7 2. 18 10 8, 14 54, 30 Explain two different ways to determine if two ratios are proportional. Warm-Up Review. 1. 5 7 8, 14 18 10 54 , 30 3.

ByMath Mania. stretching. and. shrinking. 7th grade. Stretching & Shrinking. Scale Factors. Similar Figures. SF and Area . Vocabulary Terms. Writing Rules. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500.

ByScale Factor of Similar Figures. Finding the Scale Factor Finding Dimensions with Scale Factor. Irma Crespo 2010. Warm Up. What are the two things you need to show if a pair of polygons is similar?. side lengths and angles are identical b) top and bottom are parallel

ByProportions, Measurement Conversions, Scale, and Percents. by Lauren McCluskey . Credits. “Prentice Hall Mathematics: Algebra I” “Changing Percents” by D. Fisher “Percent I” by Monica and Bob Yuskaitis “Percent II” by Monica and Bob Yuskaitis

ByLesson 9.6: Similar Figures and Indirect Measurement. Pre Algebra. Definitions. Similar Figures: Figures that have the same shape, but not necessarily the same size. Properties of Similar Figures. If two figures are similar, then: The corresponding angles have the same measure.

ByLesson 4.1.1 – Teacher Notes. Standard: 7.G.A.1 Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale.

By6.5 Similarity and Measurement. In similar figures, their corresponding sides are proportional!. 12 ft. 3 ft. 4 ft. 1 ft. 1 ft = 4 ft 3 ft 12 ft. Now we want to find a missing side. 5 ft. 25 ft. 2 ft. x ft. 5 ft = 25 ft 2 ft x ft. 5x = 50. 5 5. x = 10.

ByTable of Contents. Table of Contents. October 2012. Look at the set of points. (1,5) (2,6) (3,7) (4,__) 1a. What number would go in the blank? Plot the points. 1b. What are some other points that would fit the pattern? Plot them. (___,____) (____,____) (_____,_____)

ByFinal Exam Review Answers on last slide. What is the geometric mean of 15 and 8?. 2. Solve for x . 3. If cos P = 0.5, find m P . A. 30 o B. 1 o C. 60 o D. 43 o.

BySolving Equations . Chapter 2. 2.1 Solving One-Step Equations. Pg. 81 – 87 Obj : Learn how to solve one-step equations in one variable. Content Standard: A.CED.1 and A.REI.3. 2.1 Solving One-Step Equations. Equivalent equations – equations that have the same solution(s)

By1 st Semester Review. Regular Math. Changing a Fraction to a Decimal. Look at the denominator to see if you can change it to a power of ten (10, 100, 1000, etc…) If you can change * If you cannot change the

By3-5 Proportions & Similar Figures. Similar figures. ~. The symbol meaning similar is a single squiggle. 6 th grade definition same shape different size 8 th grade definition corresponding angles are congruent corresponding sides are proportional. Corresponding means matching.

BySection 8 – 2 Similar Polygons. Objectives: To identify similar polygons To apply similar polygons. Similar Polygons :. Two polygons whose corresponding angles are congruent and corresponding sides are proportional. Similarity Ratio :. The ratio of the lengths of the corresponding sides.

ByArea. Geometry Chapter 10. 10-1 Area of Parallelograms and Rectangles. 10-1 Area of Parallelograms and Rectangles. 10-1 Area of Parallelograms and Rectangles. 10-1 Area of Parallelograms and Rectangles. 10-1 Area of Parallelograms and Rectangles.

ByUsing Similar Figures to Solve Problems. There are a variety of problems that can be solved with similar triangles. To make things easier use or draw a picture to help you find the congruent angles and corresponding edges. Example #1: Using Shadows to find the height of things.

ByWeek 18, Day Two. HW # 63 - Study for the Individual Exam, complete any unfinished class work. Warm up Lexi and Maria had $250 all together. After Lexi spend 2/5 of her money and Maria spent $40, they had the same amount of money left. How much money did Lexi have in the beginning?.

ByDilations Dilations Dilations Dilations. A dilation. is a transformation that produces an image that is the same shape as the pre-image, but is a different size stretches or shrinks the original figure. Scale Factor.

ByDilations. Objective: . Dilation. A Dilation can enlarge or reduce a figure by a scale factor . . 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. . Scale Factor. What is a Scale Factor?

ByDecimals; Add and Subtract. Adding and subtracting decimals. Ordering Fractions. Putting Negative and Positive Fractions on the number line. Scientific Notation. Is a way of expressing really big numbers or really small numbers. Using Standard Form and Scientific Notation. Integers.

ByNotes 73: (11.3) Perimeter and Area of Similar Figures. THEOREM 11.7: AREAS OF SIMILAR POLYGONS. If two polygons are similar with the lengths of corresponding sides in the ratio of a:b, then the ratio of their areas is a 2 :b 2 . = = = . Example 1.

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