Q. 1404.6( 5 Votes )

The pieces of Tangrams have been rearranged to make the given shape.



By observing the given shape, answer the following questions:

• What percentage of total has been coloured?

(i) Red (R) = _________

(ii) Blue (B) = ________

(iii) Green (G) = _______

• Check that the sum of all the percentages calculated above should be 100.

• If we rearrange the same pieces to form some other shape, will the percentage of colours change?

Answer :

1) Total coloured shape = + + + + + + = 1


i) Red coloured shape = + + =


Percentage of Red coloured = × 100%


= = 37.5%


ii) Blue coloured shape = + =


Percentage of blue coloured shape = × 100%


= × 100%


iii) Green coloured shape = +


=


Percentage of green coloured shape = × 100%


= × 100%


2) Sum of all percentages calculated = Percentage of red coloured + percentage of blue coloured + percentage of green coloured


= 37.5 + 50 + 12.5


= 100%


3) If we rearrange the same pieces to form some other shape, the percentage of colours will not change, because we just rearrange the parts and not changing the percentage of colours.


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