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Published byAmos Bates
Modified over 8 years ago
Solve for x
Similar Figures Similar figures have sides that are proportional. Scale Factor:
Are they Similar?
Find the Scale Factor:
If the figures are similar, find the missing side.
A 6 ft tall tent standing next to a cardboard box casts a 9 ft shadow. If the cardboard box casts a shadow that is 6 ft long then how tall is it?
A model house is 12 cm wide. If it was built with a scale of 3 cm: 4 m then how wide is the real house?
If a 42.9 ft tall flagpole casts a 253.1 ft long shadow then how long is the shadow that a 6.2 ft tall woman casts?
If you can buy one can of pineapple chunks for $2 then how many can you buy with $10?
4.2 Using Similar Shapes How can you use similar shapes to find unknown measures?
Similar Triangles. What does similar mean? Similar—the same shapes, but different sizes (may need to be flipped or turned) 4 ft 8ft 12 ft 3ft 6 ft.
Indirect measurement Problems
Applications of Proportions
DO NOW ft 4ft On a Sunny Day, a person who is 6ft tall casts a 4ft shadow. This is proportional to the height of a nearby flagpole which casts.
November 3, 2014 NEW SEATS!!. November 3, 2014 W ARM -U P : A scale drawing of a rectangular rug has dimensions 8 inches by 5 inches. The length of the.
3-5: Proportions and Similar Figures
Similar figures have exactly the same shape but not necessarily the same ______________. Corresponding sides of two figures are in the same relative position,
EXAMPLE 3 Standardized Test Practice.
EXAMPLE 3 Standardized Test Practice. EXAMPLE 3 Standardized Test Practice SOLUTION The flagpole and the woman form sides of two right triangles with.
Today’s Lesson: What: similar Figures Why: To use proportions to solve problems involving similar figures. What: similar Figures Why: To use proportions.
1-9 applications of proportions
LESSON 8.3B: Applications OBJECTIVE: To solve real-life problems using similar triangles/indirect measurement.
Similar figures have exactly the same shape but not necessarily the same size. Corresponding sides of two figures are in the same relative position, and.
Math Similar Figures.
Unit 6: Scale Factor and Measurement
Similar Triangles. Similar triangles have the same shape, but not necessarily the same size. Two main tests for similarity: 1)If the angles of 1 triangle.
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Proportions Scale Models And Scale.
Geometry 7-2 Solving Similar Δ’s Proportions can be used to find the missing lengths of similar figures. Ex) ΔCAB ~ ΔTRS. Find RT.
Extension 3.6 Proportions and Similar Figures A.What do you know about similar triangles and congruent triangles? B.Definitions 1.Similar triangles – have.
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