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adelina 88 [10]
4 years ago
9

Help I can’t find the area

Mathematics
1 answer:
Katarina [22]4 years ago
6 0
We have
two rectangles 71cm x 23cm
two rectangles 71cm x 28cm
two rectangles 23cm x 28cm

The surface area of this figure:

A_S=2\cdot71\cdot23+2\cdot71\cdot28+2\cdot23\cdot28\\\\=3,266+3,976+1,288=8,530\ cm^2

Answer: A. 8,530 cm².
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