Question

The perimeter of a rectangle is 13 cm and its width is 3/4 cm. Its length will be____________ ​

Answer 1

Answer:

perimeter of rectangle = 13

$2(l + b) = 13$

$2(l + \frac{3}{4} ) = 13$

$l + \frac{3}{4} = \frac{13}{2}$

$l = \frac{13}{2} - \frac{3}{4}$

$l = \frac{26 - 3}{4}$

$l = \frac{23}{4} cm$

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Answer 2

Answer:

1/23

Step-by-step explanation:

13 = 2 (l + b)

13 = 2 (l + 3/4)

13 = 2l + 6/4

13 - 6/4 = 2l

(52-6)/4 = 2l

46/4 = 2l

l = 2 : 46/4

l = 2 x 4/46

l = 8/46

l = 1/23