Tiles around a pool: Writing expressions

作者：Cristina Masotta, Duane Habecker, Mathguru

Square tiles are placed around a rectangular pool (in blue). How many of these square tiles are needed? Write an algebraic expression for the number of tiles needed to go around the pool.

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Step Five
MATHEMATICS and Geometry 9 : 8.4 Tangent Properties: 1.b
Pentagon- Devin Butler
Visualizing the Measures of Center
Tony Foster's Proof of Viviani's Theorem(GEOM-10)

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黎曼和（Riemann Sum）
平均數
Pythagoras or Pythagorean Theorem
餘弦
算術

Tiles around a pool: Writing expressions

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