Question

the perimeter of a rectangle is 130 cm. if the breadth of the rectangle is 30 cm, find its length. also find the area of the rectangle. ​

Answer 1

Answer:

Perimeter of rectangle=130cm

⇒2(length+breadth)=130cm

⇒2(length+30)=130

⇒ length+30=

2

130

⇒ length+30=65

⇒ length=65−30=35cm

Now area of rectangle=length×breadth=35×30=1050cm

2

Thus, the area of rectangle is 1050cm

2

.

Answer 2

Given:

Perimeter of the rectangle = 130 cm

Breadth of the rectangle = 30

Formula:

Perimeter of rectangle = 2 (Length + Breadth)

130 = 2 (length + 30)

130/2 = length + 30

Length + 30 = 65

Length = 65 – 30

Length = 35 cm

Then:

Area of the rectangle = Length × Breadth

= 35 × 30

= 1050 cm²

Therefore:

Area of the rectangle = 1050 cm² Ans