Question

How much wire will be needed to make a rectangle 25 cm long and 15 cm wide ?

Answer 1

Answer:

Step-by-step explanation:

To find how much wire is needed we need to find the perimeter of the rectangle:)

i.e. 2(l+b)

Where l=25cm

& b= 15cm

So, 2(25+15)cm

2(40)cm

=80cm

Hence, we need 80cm wire

So answer is 80cm

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Answer 2

Answer:

Required length of wire is 80 cm.

Step-by-step explanation:

It is given that we have to make a rectangle of length 25 cm and breadth or wide 15 cm.

Also, we have to make this rectangle with the help of wire.

Total length of required wire should be dependent of on the perimeter of the rectangle, from this we can get the sum of lengths of wire which are spread in all directions to form rectangle.

From the properties of rectangle : -

• Perimeter of rectangle = 2( length + breadth )

Therefore,

= > Perimeter of this rectangle = 2( 25 cm + 15 cm )

= > Perimeter of this rectangle = 2( 40 cm )

= > Perimeter of this rectangle = 80 cm

Thus,

80 cm of wire will be needed to make a rectangle is 25 cm length of breadth of 15 cm.

Hence the required length of wire is 80 cm.