connectED.mcgraw-hill.com
Investigate
AnimationsVocabularyMultilingual
eGlossaryLearn
Personal TutorVirtual
ManipulativesGraphing CalculatorAudioFoldablesPractice
Self-Check PracticeWorksheetsAssessment262 Proportions and SimilarityTheThe
BIG IdeaWhat makes
two quantities
proportional?Make this Foldable
to help you organize
your notes.5
CHAPTER
Proportions and Similarity
and NonportionalProportional
RelationshipsRatesSolve Proportions
Scale Dreawigs
Similar Figures
and Area ofPerimeter
Similar Figureseroorrfff
uresuresuresuresuruesccoonn
English English
EspañolEspañolproportion proporción
rate tasa
scale factor factor de escala
similar figures figures semejantesratio^ razón a comparison of two numbers by division;
the ratio of 2 to 3 can be written as 2 out of 3, 2 to 3,
2 : 3, or^2 _
3
The ratio of squares to
trianglestriangles is^22 :^33.Key VocabularyKey Vocabulary
Review Vocabulary
262_264_C05_CO_895130.indd 262 12/29/09 1:03 PM