Question

12. Find the perimeter and area of a rectangle whose length is
3/7
cm and breadth is7/9​

Answer 1

Answer:

Step-by-step explanation:

Perimeter = 2(l+b)

=2(3/7 + 7/9)

=2(27+49/63)

=2(76/63)

= 152/63

Answer 2

Perimeter of a rectangele is 2(l+b)

$2( \frac{3}{7} + \frac{7}{9}) \\ \\ 2( \frac{3 \times 9 + 7 \times 7}{63}) \\ \\ 2( \frac{27 + 49}{63} ) \\ \\ 2( \frac{76}{63} ) \\ \\ \frac{76 \times 2}{63} = \frac{152}{63}$

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