Question

c) A thin wire 20 centimetres long is formed into a
rectangle. If the width of this rectangle is
4 centimetres, what is its length?​

Answer 1

Answer:

5

Step-by-step explanation:

Answer 2

GIVEN,

Length of wire =20cm

Width of rectangle=4cm

Now,

if a wire is bent to form any shape,then, perimeter of the shape equals the length of the wire.

Over Here,

Perimeter of rectangle=Length of wire=20cm

We Know,

Perimeter of rectangle=2(l+b)

where 'l' represents length and 'b' represents breadth.

So now find the length of the rectangle.

As per formula,

20=2(length+4)

=>20/2=length+4

=>10‐4=length

=>6=length

SO, THE LENGTH OF THE RECTANGLE IS 6cm.

HOPE IT HELPS.