Question

10. In the given parallelogram PINK, the length of IN is 2 cm
greater than the length of KN. If the perimeter of PINK is 84 cm,
then find the length of IN.​

Answer 1

Answer:

Let IN be y and KN be x

y = x + 2

Perimeter of a parallelogram is 2(l+b) = 2(IN + KN) = 2(x+y) = 2(x+x+2) = 2(2x+2) = 4(x+1) = 84

x+1 = 84/4 = 21

x = 21 - 1

Therfore, x=20

Hope it helps

Answer 2

Answer:

given

in =2cm

kn is greater than in

perimeter is 84cm

procedure

this is a parallelogram PINK

take parellogram formula

p =2(l+b)

84= 2(l+2)

84=2l+4

2l = 84-4

2l =80

l=80/2

l=40

so kn is 40 cm