1. P = 2L + 2W
P = 2 (12) + 2 (9)
P = 24 + 18
P = 42 cm
2. P = a + b + c
P = 12 + 18 + 12
3. P = a + b + c + d
P = 7.5 + 11 + 7.5 + 15
P = 41 cm
4. P = 12 × s
P = 12 × 12
P = 144 cm
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ANSWER:
1. P = 2L + 2W
P = 2 (12) + 2 (9)
P = 24 + 18
P = 42 cm
2. P = a + b + c
P = 12 + 18 + 12
P = 42 cm
3. P = a + b + c + d
P = 7.5 + 11 + 7.5 + 15
P = 41 cm
4. P = 12 × s
P = 12 × 12
P = 144 cm
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