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

Solution:

Breadth of the rectangle = 30 cm

Perimeter of a rectangle = 130 cm

Perimeter of rectangle = 2 × [Length(l) + Breadth(b)]

130 cm = 2 × (l + 30 cm)

130 cm = 2l + 60 cm 

2l = 130 cm - 60 cm

2l = 70 cm

l = 70/2 cm

l = 35 cm

Area of Rectangle = Length × Breadth

= (35 × 30) cm² 

= 1050 cm²

☛ Check: NCERT Solutions Class 7 Maths Chapter 11

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Video Solution:

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

Class 7 Maths NCERT Solutions Chapter 11 Exercise 11.1 Question 7

Summary:

The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm, its length is 35 cm. Also, the area of the rectangle is 1050 cm².

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