2 cm = 0.02 metres.
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Diameter = 2*Radius = 2 cm.
Perimeter = 2+2+2+1.5+2.5 = 10 cm
The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.
Which dimensions are which? For a base of 2 cm, height of 3 cm, and length of 2 cm it would be 5 cm^3. It would be the same if the base were 3 cm, but if the length were 3 cm it would instead be 6 cm^3.
1 dm = 1 cm → 1 dm² = 1 dm × 1 dm = 10 cm × 10 cm = 100 cm² → To convert dm² to cm² multiply by 100 → 5 dm² = 5 × 100 cm² = 500 cm².