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Chapter 7 Vocabulary

Terms from Unit 7(Sections 7.1-7.3 & 7.5)

__ are polygons that have corresponding, proportional sides and corresponding, congruent angles. Similar polygons
Two figures that have the same shape and same size are known to be __. Congruent
True/False: When writing the side ratios, the image goes over the preimage. True
__ is the original figure. preimage
Circle the correct term: Congruent figures are always / sometimes / never similar. always
A comparison of two quantities by division is called a(n) __. ratio
The resulting figure is called __. image
When two ratios are equal, it is known as a(n) __. proportion
The first and the last numbers in a proportion are called the __. Extremes
When three or more ratios are equal, it is called a(n) __. extended proportion
__ is a drawing where all the lengths are proportional to their corresponding actual lengths. scale drawing
True/False: A figure undergoes a reduction when the scale factor is greater than one. False
A ratio that compares each length in the scale drawing to the actual length is known as a(n) __. Scale
True/False: The scale factor can be negative. False
Circle the correct term: Translation / Rotation is known as a slide. Translation
Circle the correct term: Reflection / Dilation is a similar transformation. Dilation
Created by: BL Shillinglaw BL Shillinglaw