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polet [3.4K]
3 years ago
5

Find the area 7cm 12cm 9cm

Mathematics
1 answer:
Allisa [31]3 years ago
4 0

Answer:

139.5 cm²

Step-by-step explanation:

12 · 9

108 cm²

7 · 9

63

63 ÷ 2

31.5 cm²

108 cm² + 31.5 cm²

139.5 cm²

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