Question

11. The perimeter of a rectangular sheet is 100 cm. Ifits length is 35 cm, then find its breadth. Also find the area of the rectangular sheet.​

Answer 1

Step-by-step explanation:

Let the breadth be k

= 2(l + b) = 100

= 2(35 + k) = 100

= 70 + 2k = 100

= 2k = 100 - 70

= 2k = 30

= k = 15cm

Area is l x b

= 35 x 15

= 525cm²

Answer 2

$\huge \rm \red{Answer}$

Given,

Perimeter of rectangular sheet = 100 cm

Length of rectangular sheet = 35 cm

Perimeter = 2(Length + Breadth)

Perimeter of rect. sheet = 2(35 + B)

➜ 100 = 70 + 2B

➜ 30 = 2B

B = 15cm

Breadth of rectangular sheet = 15cm

Area of the rectangle = Length × Breadth

Area of the rectangular sheet = 35 × 15

Area of the rectangular sheet = 525cm²

The Breadth of rectangular sheet = 15 cm, the area of sheet = 525 cm²