Question

how can we find area and perimeter of a notebook​

Answer 1

Answer:

first find out the length of the notebook

for example if the note book length is 15 cm and it's square so ...

a perimeter of a square is 4×side

so ...

15 × 4 =60

Answer 2

First look at the notebook, recognize the shape of the notebook.

Almost all the notebooks are in either square or rectangle.

so,

(i) Square:

If the shape of the note book is square:

Then find the length of one of its side.

area of the notebook $= side\times side = side^{2}$

perimeter of the notebook $=4\times side .$

(ii) Rectangle:

If the shape of the note book is rectangle:

Then find the length of its consicutive sides.

Name them $a, b$

area of the notebook $=a\times b=ab$

perimeter of the notebook $=2(a+b).$