Bellwork
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Transcript of Bellwork
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Bellwork Jerome and Jillian set up a lemonade
stand. They sell lemonade and sweet tea. Each cup costs $0.50. Which equation shows how Jerome and Jillian can determine their total sales (S) based on the number of cups of lemonade sole (L) and the number of cups of sweet tea sold (T).
A. S=0.50(LxT) B. S=0.50(L+T) C. S=0.50+(LxT)D. S=0.50+(L+T)
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Daily Routine….
Timed Skill Drill
HomeworkReview
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SIMILAR FIGURES
Pre-AlgebraObjective 3d
Sculpture Park in IrelandName: 60 Degrees
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Similarity in the Animal Kingdom
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Similar Figures in MathFigures that have the same shape… but are NOT the same size.
Do you see the similar figures in the photographs?
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Why Learn About Similar Figures? Similar figures can be applied to solve real world problems.
For example, similar triangles can be used to find the height of a structure, the width of a river, the height of a tree etc.
Great Pyramidsof Egypt
Olive Tree
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Similar Figures
The corresponding angles have
equal measurements.
Use proportions to solve problems involving similar figures.
Definition: Figures that have the same shape BUT are not the same size.
The corresponding sides form a
proportion.
Similar Figures
:
Similar
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Similar Same shape BUT NOT same size Proportional in size
ABC DEF
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Similar or not?20in
32in
24in
18in
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Similar or not?
2.8 yd 7 yd
2 yd5 yd
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Solving given similarity:Step 1Write a proportion using corresponding sides.
Step 2Cross multiply.
Step 3Solve the one-step equation.
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Solve for x….
8
20 x 10 12
16
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What is ? DK
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Find the value of x.
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Find the value of m.
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Find AN….
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Closure What is the difference between
congruent and similar figures?