(b)
3 cm
3 cm
3 cm
9 cm
3 cm
3 cm
3 cm
14 cm
(d)
7 cm
7 cm
7 cm
16 cm
7 cm
7 cm
14 cm
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Answer:
perimeter of a is 3+3+3+9+3+3+3=27
perimeter of b is 7+7+7+16+7+7+14=65
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