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The answer to the sixth question in the third chapter of the sixth grade math book. Find the front surface of the following shape.
Figure1:10×10× 2+15×10× 4

Figure 2:6×6×6

Figure 3: 2× 3. 14× 5 = 3 1.4 (cm) 3. 14× 12 = 376.8 (cm squared).

3. The square of14× 5 = 78.5 (square centimeter) 376.8+78.5× 2 = 9 10.6 (square centimeter)

I did it in the sixth grade, too. I hope to adopt.

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