Answer:

A≈4.15cm²

A≈4.15cm²a Side

A≈4.15cm²a Side 3

A≈4.15cm²a Side 3cm

A≈4.15cm²a Side 3cmb Base

A≈4.15cm²a Side 3cmb Base 3

A≈4.15cm²a Side 3cmb Base 3cm

A≈4.15cm²a Side 3cmb Base 3cmc Side

A≈4.15cm²a Side 3cmb Base 3cmc Side 5

A≈4.15cm²a Side 3cmb Base 3cmc Side 5cm

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