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Lerok [7]
3 years ago
14

YALL THIS IS DUE

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0
Start with the bottom surface area, 7x7=49

then go to the triangles, base times height divided by 2, so (7x14)/2=49
and since there are 4 triangles, multiply 49 by 4 = 196 and add the area of the bottom, which all adds up to 245
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