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240 cm²

This one is pretty simple, the triangle that sits on the upper left side of the shape fits right where there is a missing triangle shape on the upper right side. So just simply add 5.5 and 6.5 to get the total height of the figure and multiply it by the width (20).

5.5 cm + 6.5 cm = 12 cm

                 ↓  

12cm × 20 cm = 240 cm²

Your answer is 240 cm²

Have a great day!

~Siascon~

240cm^2 it’s literally the same rectangle and the triangle on the other side you can ignore since if you put it on the right side it just turns it into a rectangle and just length times width find the area which is 240cm^2

841.8

Step-by-step explanation: