Determine whether 2-dimensional shapes are similar
In this lesson you will learn how to determine whether two dimensional shapes are similar by testing whether the shapes have the same number of sides, the same ratio between dimensions, and the same ratio within dimensions.
ADDITIONAL MATERIALS
STANDARDS
CCSS.7.RP.A.2.a Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
TEKS.7.4.D solve problems involving ratios, rates, and percents, including multi-step problems involving percent increase and percent decrease, and financial literacy problems; and
TEKS.8.5.H identify examples of proportional and non-proportional functions that arise from mathematical and real-world problems; and
TEKS.8.5.F distinguish between proportional and non-proportional situations using tables, graphs, and equations in the form 𝑦= 𝑘𝑥 or 𝑦 = 𝑚𝑥 + 𝑏, where 𝑏 ≠ 0;
TEKS.8.5.E solve problems involving direct variation;
IN.7.AF.6 Decide whether two quantities are in a proportional relationship (e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin).
VA.CE.7.3 The student will solve single-step and multistep practical problems, using proportional reasoning.
VA.S.A.8 The student, given a data set or practical situation, will analyze a relation to determine whether a direct or inverse variation exists, and represent a direct variation algebraically and graphically and an inverse variation algebraically.
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