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Huanggang small champion people's education printing plate mathematics sixth grade volume 35 pages training homework answer.
1, 4×4 (square) +4×3. 14 (circle) =28.56 (m)

2.4×4 (square) +2×3. 14( 1 circle) × 4 (four circles) =4 1. 12 (meter)

3. Four quarter circles are combined into one.

4×4 (square) +4×3. 14 (circle) =28.56 (meter)

2> 1=3