What I Learned in Math Today

Today in math class I learned how to calculate an irregular shape.

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Calculations:

9 x 3.5 = 31.5 x 4 = 126

9 x 9 = 81

13 x 8 = 104 x 2 = 208

20.5 x 8 = 164 x 2 = 328

20.5x 13 = 266.5 x 2 = 533 – 81 = 452

126 + 81 + 208 + 328 + 452 = 1195cm2

 

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