Picture Perfect

Author:wotton.dorothea.18

The Problem:

A 9-by-12 rectangular picture is framed by a border of uniform width. Given that the combined area of picture plus frame is 180 square units, find the width of the border.

New Resources

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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Silhouettes
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Discover Topics

Equilateral Triangles
Intersection
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Similarity Transformation or Similarity
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