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mote1985 [20]
3 years ago
13

Please Help ASAP 20pts

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0

Answer:

640 cm ^2

Step-by-step explanation:

40x4x4 = 640

let's say b = 20 and h = 4

1/2(20)(4) = 40

scale by 4

b= 80 h = 16

1/2(80)(16) = 640

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