The Pentagon Problem

Author:milansherman

Conjecture: As long as the two smaller pentagons are formed by connecting the midpoints of the next larger pentagon, the two ratios of the areas will always be equal, and the two ratios of the perimeters will always be equal.

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Multiplying 4-Digit by 4-Digit Numbers Using an Area Model
bewijs stelling van Pythagoras
apec
Untitled
A Happy Polar Leaf

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Activity 3-3
CHO CHO
Quiz on Features of Quadratic Graphs 二次函數圖像的特徵：測驗
Naura II Locked
Regular Hexagon Construction

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Quadrilaterals
Centroid or Barycenter
Means
Boxplot
Histogram