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Please help with these I need to pass

Please help with these I need to pass-example-1
User Gari Singh
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3-

((11 + 19) * 10) / 2 \\ = (30 * 10) / 2 = 300 / 2 = 150the answer is 150 units^2

4- the area of the rectangle:

14 * 21 = 294
the area of the triangle :

(16 *(21 - 12)) / 2 = \\ (16 * 9) / 2 = 144 / 2 = 72
the area of the whole shape:

294+ 72 = 366
the answer is 366 units^2
hope this helps
User Kereem
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