Question

The area of a rectangle is 98 cm' and its length is 56 mm. Find its breadth and perimeter.​

Answer 1

Answer:

area = 98 cm²

length = 56 mm = 5.6cm

area = length × breadth

98 = 5.6 × breadth

breadth = 17.5 cm

Explanation:

perimeter = 2(length + breadth)

= 2( 5.6 + 17.5 )

= 2 × 23.1

= 46.2 cm

Answer 2

$\huge\bf{Answer :}$

GIVEN :-

• Area of the rectangle = 98 cm²
• Length of the rectangle = 56 mm

TO FIND :-

• Breadth of the rectangle.
• Perimeter of the rectangle.

ANSWER :-

[ First of all we need to convert 56 mm into cm ]

∴ Length of the rectangle ( in cm ) = 56 / 10

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ = 5.6 cm

Now , Let the breadth of the rectangle be x cm.

Area of the rectangle = l × b

⠀⠀⠀⠀⠀⠀⠀⠀ ⠀ ⠀98⠀= 5.6 × x

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ x = 98 / 5.6

⠀⠀⠀⠀⠀⠀⠀ ⠀ ⠀x = 17.5 cm ✔️

Also , Perimeter = 2 ( l + b )

⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀= 2 ( 17.5 + 5.6 )

⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀ = 2 ( 23.1 )

⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀ = 46.1 cm ✔️

Hence , Perimeter of rectangle = 46.1 cm

⠀⠀⠀⠀⠀ Breadth of rectangle = 17.5 cm