Question

if two adjacent sides of a parallelogram are 12 cm and 8 cm ,find its perimeter??‍‍​

Answer 1

Answer:

perimeter=sum of all sides

=12*2+8*2

=2(12+8)=20*2=40cm

Answer 2

Answer:

Hence, value of perimeter of parallelogram will be 40 cm

Step-by-step explanation:

In context to question asked,

We have to determine the value of perimeter of the parallelogram.

As per question,

Parallel sides of parallelogram are - 12 cm and 8 cm

As we know that,

• Opposite sides of parallelogram are parallel and equal.
• Perimeter of any figure can be determined by adding the length of sides of outer border of the figure.

So, for determining the value of perimeter of parallelogram we will use the formula - $Perimeter = 2 (l +b) = 2 (Sum\: of \:both \:sides)$

So, for determining the value of perimeter of parallelogram we will put the value of sides given in the question in above formula,

Thus we will get,

$Perimeter = 2 (12+8) = 2 \times 20 = 40\:cm$