I had learnt all formulae of areas related to circles but i don't know how to put which formula in which question and how?
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Area of a circle=πr²
For eg. If the r=2
If the value of π is not given, then it is usually taken as 22/7.
Therefore, π=22/7
πr²
22/7*2²
22/7*4
=88/7
=12.57
Therefore, the area of the circle=12.57
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Hey your answer is in the given attachment
HOPE IT IS HELPFUL
⚘#thank you#⚘
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