Question

Calculate the area of regular flat surface like a rectangular cardboard using a graph paper

Answer 1

Answer:

the rectangular cardboard is placed on a centimeter graph sheet and it outline is drawn then the number of complete square occupied by the cardboard are counted. Let the number of small square be 'X' 9 then the area of the rectangle is

Area of rectangle = X x area of square

= X x 1 cm = x cm

Alternate method

If we use the formula for

the area of rectangle.

for X = length = 8 cm and breath = 4 cm Area of rectangle = length X breath = 32