Question

the adjacent side of parallelogram is 3x and 4x . if the perimeter is 70 cm. then find the side of parallelogram​

Answer 1

Step-by-step explanation:now perimeter=70

2(l+b)=70

2(3x+4x)=70

7x=70÷2

7x=35

x=5

3x=3×5=15

4x=4×5=20

hope it helps you

Answer 2

Answer:

Hence, value of sides of parallelogram will be 15 cm and 20 cm

Step-by-step explanation:

In context to question asked,

We have to determine the perimeter of parallelogram.

As per question,

Adjacent sides of parallelogram = 3x cm and 4x cm

As we know that,

• Parallelogram is the quadrilateral whose opposite sides are equal and parallel.

• None of angle of parallelogram is of right angle.

The perimeter of parallelogram can be determined by using formula -

$Perimeter = 2 \times (a+b)$, where a and b are adjacent sides of parallelogram.

So, for determining the sides of parallelogram we will put the value of sides assumed in above formula,

Thus we will get,

$Perimeter = 2(3x+4x)\\=>70 = 2\times 7x\\=>14x = 70\\=>x = \frac{70}{14} = 7\\=>Sides = 3x = (3\times 5) = 15\:cm \:and \:4x = (4\times 5) = 20\:cm$