SOLUTION: If someone could help me with this probelm I would be very thankful. I should find the area of a circle with radius 4 (and the answer should be in pi), could someone maybe explain

Algebra ->  Circles -> SOLUTION: If someone could help me with this probelm I would be very thankful. I should find the area of a circle with radius 4 (and the answer should be in pi), could someone maybe explain       Log On


   

Question 136913: If someone could help me with this probelm I would be very thankful. I should find the area of a circle with radius 4 (and the answer should be in pi), could someone maybe explain how I should solve the problem?
Found 2 solutions by ptaylor, dolly:
Answer by ptaylor(2198) About Me  (Show Source):
You can put this solution on YOUR website!
Area of a circle, A, equals Pi times the radius squared or:
A=pi%2Ar%5E2
A=pi%2A%284%5E2%29 or
A=16pi
Hope this helps---ptaylor

Answer by dolly(163) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
this is quite simple.
Area of a cirlce has a standard formula = Pi* r^2 where Pi is a constant = 3.14 and r = radius of the circle.
Here the radius is given to be 4 units
So r^2 = 4^2 = 16
Thus the area of the circle = Pi * 16
= 16 Pi sq units
Hope this helps.
Good luck!!!
dolly