Question

ratio of two adjoining sides of a parallelogram is 5:7 and its perimeter is 384cm. Find the length of its each side​

Answer 1

Answer:

80cm and 112cm

Step-by-step explanation:

the opposite sides of a triangle are of equal length

thus (5x+7x)*2= 384

solving this we will get

X= 16

as the ratio of sides is 5:7

thus the lenght of the opposite sides are 16*5=80 and 7*16= 112

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Answer 2

Given : ratio of two adjoining sides of a parallelogram is 5:7

perimeter is 384cm

To Find : Length of Each Side

Solution:

Parallelogram has opposites sides Equal

ratio of two adjoining sides of a parallelogram is 5:7

Let say sides are  5S  and 7S  cm

Opposites sides are also 5S and 7S

Perimeter = 5S + 7S + 5S + 7S  

= 24S  cm

Perimeter = 384 cm

24S = 384

=> S = 16

5S = 5(16) = 80 cm

7S = 7(16)  = 112  cm

Length of sides of Parallelogram are :  80 cm , 112 cm , 80 cm and 112 cm

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