Question

a thin wire 60 cm long is made into a rectangle . if the width is 10 cm what is its length​

Answer 1

Answer:

• Perimeter of rectangle = 60 cm
• Width of the rectangle (b) = 10 cm
• Length of the rectangle (l) = ?

Perimeter of rectangle = 2 ( length + breadth )

• 60 = 2 ( length + 10 )
• 60 / 2 = length + 10
• 30 = length + 10
• length = 30 - 10
• Length = 20 cm

Proof :-

Perimeter of rectangle = 2 ( length × breadth )

• 2 ( 20 + 10 )
• 2 × 30
• 60 cm

:. Perimeter of rectangle = 60 cm

Hence You Got Your Answer .

Answer 2

Answer:

Length = 20cm

Step-by-step explanation:

   Perimeter of rectangle = 60 cm

   Width of the rectangle (b) = 10 cm

   Length of the rectangle (l) = ?

Perimeter of rectangle = 2 ( length + breadth )

   60 = 2 ( length + 10 )

   60 / 2 = length + 10

   30 = length + 10

   length = 30 - 10

   Length = 20 cm

Proof :-

Perimeter of rectangle = 2 ( length × breadth )

   2 ( 20 + 10 )

   2 × 30

   60 cm

:. Perimeter of rectangle = 60 cm

Hence You Got Your Answer .