Question

To find the approximate area of irregular figure.
Area of the irregular closed figure can be calculated approximately by using
graph paper. Draw an outline of the given piece of object on the graph paper
with pencil. Let us learn from the activity how the area of the given figure is
calculated by counting the number of squares on the graph paper.
(1) The number of complete squares
of area 1 sq cm = 13
:. Area of those squares is
= 13 sq cm
1. *
2
3
4 5 6
7 8 9
(2) In the figure the number of parts
1
having area more than
sq cm
2
but less than 1 sq cm = 11
.. Area of these parts = 11 sq cm
(3) From the figure, number of parts
1
having area
sq cm = 0
2
.. Area of these parts = 0 sq cm
10 11 12 13​

Answer 1

Answer:

He counted all the squares on the graph paper . ... With these pieces he can make different structures. ... Let's understand how to calculate area of any shape by graph or square blocks.

Answer 2

Answer:

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