# math

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The length and the breadth of a rectangle are rounded off to the nearest centimetre.The perimeter of the rectangle is 26cm.What are the possible values of its length and breadth.

• math -

L = Length

P = Perimeter

P = 2 L + 2 B = 2 ( L + B )

26 = 2 ( L + B ) Divide both sides by 2

26 / 2 = 2 ( L + B ) / 2

13 = L + B Substract L to both sides

13 - L = L + B - L

13 - L = B

B = 13 - L

1.)

L = 1 cm

B = 13 - 1 = 12 cm

2.)

L = 2 cm

B = 13 - 2 = 11 cm

3.)

L = 3 cm

B = 13 - 3 = 10 cm

4.)

L = 4 cm

B = 13 - 4 = 9 cm

etc.

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