ISEE Lower Level Mathematics Achievement Flashcards: Perimeter From Diagrams

Study Perimeter From Diagrams in ISEE Lower Level Mathematics Achievement with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What should you do if one exterior side length is not labeled but can be deduced?

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ANSWER

Use equal/opposite sides or subtraction to find it, then add. In symmetric or composite figures, deduce unlabeled outer sides using properties like congruence or by subtracting known lengths from totals.

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ISEE Lower Level Mathematics Achievement: Geometry: Shapes, Area, and Perimeter

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What this deck covers

This deck focuses on Perimeter From Diagrams, giving you a quick way to review the definitions, rules, and examples that matter most for ISEE Lower Level Mathematics Achievement.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 20Practice questions for this set
A large rectangle is 20 feet long and 10 feet wide. A smaller rectangular porch that is 6 feet long and 4 feet wide juts out from the middle of one of the 20-foot sides. What is the perimeter of the combined shape of the house and porch?
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