Question

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Answer 1

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perimeter of rectangle = 2×(l+b)

perimeter of square = 4×s

Area of rectangle = l×b

Area of square = s×s

Step-by-step explanation:

1) p= 20cm.

A = 21 sq cm

2) p= 4×3 = 12 cm

A = 3×3 = 9sq cm

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Answer 2

Answer:

1. perimeter = 20cm

area = 21 sq cm

2. perimeter = 12cm

area = 9 sq cm

3. perimeter = 26cm

area = 24sq cm

4. perimeter = 20cm

area = 24 sq cm