Question

the dimensional of a Courtyard where measured with a metre stick and hence its area was found to be 400sq m later on it was delete delete stated that the length of the metre stick actually museures 90cm and not one metre find the correct area of the courtyard
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Answer 1

Answer:

39600cm or 396m

Step-by-step explanation:

1 mt=100cm;400 mt=40000cm

but 90 cm is measured as 1mt so we have to delete 10 cm from each mt so it is 40*10=400 has to be subtracted

ie;40000-400=39600cm

hope it helps;tq