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Romashka [77]
3 years ago
15

PLEASE HELP AND SHOW WORK I RLLY NEED TO PASS

Mathematics
1 answer:
Alex787 [66]3 years ago
8 0

40×4×4=640

b=20 h=4

using formula:

1/2×base×height

1/2×20×4=40

its says scale by factor 4:

b=80 h=16

using formula:

1/2×base×height

1/2×80×16=640

answer------>>>>640cm^2

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