Question

The perimeter of a parallelogram is 80cm. If the longer side is 20cm greater than the shorter side, then the lengths of sides of the parallelogram is:

Answer 1

mark me brnailest.....Step-by-step explanation:

Answer is below....mark me the branilest please ...

Let shorter side =x

Longer side =x+20

Perimeter =80cm

⇒2(x+x+20)=80cm⇒2x+20=40⇒x=

2

20

=10cm

hence, Shorter side 30cmm

Longer side =10+20=30cm

Answer 2

☯︎ Let shorter side be 'x'

${ \bf{Longer \: side = \: x \: + \: 20}}$

${ \bf{Perimeter \:  = \: 80 \: cm}}$

$⇒{ \bf2 (x + x + 20) = 80 \: cm}$

$⇒{ \bf{2x + 20 = 40}}$

$⇒{ \bf{x = \frac{20}{2} = 10 \: cm}}$

$↝{\bf{hence, \: Shorter \: side =10 \: cm}}$

$↝{ \bf{Longer \: side =10+20={ \boxed{ \bf{ \red{30cm}}}}}}$