A square is 1200cm
long and
There is 10cm wide
strip around the square
find the area of strip?
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Step-by-step explanation:
A strip, 2 cm broad, along the sides of a sheet of paper which is 20 cm long and 10 cm broad, has been coloured. What is the area of the ...
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Answer:
the area of strip is 20 cm
\sum\limits_{i=1}^n x_i = x_1 + x_2 + \dots + x_n
i = index of summation
n = upper limit of summation
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