Answer:
2 sides 16 cm , 2 sides 12 cm
Explanation:
the opposite sides of a parallelogram are congruent.
given ratio of sides = 4 : 3 = 4x : 3x ( x is a multiplier )
perimeter is the sum of the 4 sides
given perimeter = 56 cm , then
2(4x) + 2(3x) = 56
8x + 6x = 56
14x = 56 ( divide both sides by 14 )
x = 4
then
4x = 4 × 4 = 16
3x = 3 × 4 = 12
2 congruent sides of length 16 cm and 2 congruent sides of 12 cm