Question

If length = 21 cm and breadth = 2 dm, find the perimeter of the rectangle in centimeters?​

Answer 1

82cm answer

Step-by-step explanation:

21cm and 20cm

Perimeter 2(l+b)

=2(21+20)

=2(41)

=82cm answer

Answer 2

Answer:

breadth=2 dm

= (1dm =10cm,

2dm=10×2=20cm)

Therefore,

Length=21cm

Breadth=20 cm

Perimeter=2 × (L+B)

= 2 × (21+20) cm

= 2×41cm

=82cm

82 cm is the perimeter....

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