Question

find the perimeter of the rectangle whose lenght is 7 3/10 cm and breath is 2 3/5 cm
options :
a. 18.9cm
b. 19.8cm
c. 9.9cm
d. 19.9cm

Answer 1

Answer:

19.8 cm = b

Step-by-step explanation:

perimeter is the total of the lengths and breadths.

7 3/10 +7 3/10 + 2 3/5 + 2 3/5

= 73/10 + 73/10 + 13/5 +13/5

=146/10 + 26/5

= 146/10 + 52/10

= 198/10

=19.8 cm

= b

Answer 2

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length = 73/10 cm =7.3 cm

breadth = 23/5 cm=4.6cm

the perimeter of the rectangle =2(l+b)

=2(7.3 +4.6)

= 2×11.9

= 23.8cm

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