the perimeter of a parallelogram is 140 CM if one of the side is longer than other by 10 cm find the length of each of the side
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Let the first side be a
Second side = a + 10
Perimeter = 2 ( a + a + 10)
=> 140 = 2 ( 2a + 10)
=> 70 = 2a + 10
=> 2a = 60
=> a = 30
First side = 30 cm
Second side = 40 cm
Third side = 30 cm
Fourth side = 40 cm
Second side = a + 10
Perimeter = 2 ( a + a + 10)
=> 140 = 2 ( 2a + 10)
=> 70 = 2a + 10
=> 2a = 60
=> a = 30
First side = 30 cm
Second side = 40 cm
Third side = 30 cm
Fourth side = 40 cm
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