Work out the area of a circle with a diameter 3.6cm, take the n/pi to be 3.142 and give your answer to 1 decimal place.

16 would be your answer

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nu stiu chiar nu stiu sa o fac

using the formula for pythagorean theorem (a2+b2=c2)(the twos are exponents), and knowing that you have b squared and c squared, just reverse it. 26 squared minus 10 squared equals c squared. 26 squared is 676 and 10 squared is 100. you get 576, then use your square roots to undo the squared numbers to get 24.