Alexis is helping decorate for the school dance. Her task is to cut out 100 green circles that have a radius of 5 inches. When these are hung up on the wall how much space will one circle take up?
NB: The space covered by one circle is equivalent to its area.
Area of circle = pi x r x r
pi = 3.142
r = 5 inches
Area = (3.142 x 5 x 5) squares inches
Area = 78.55 squared inches.
Hope this helps. Ask any question if you are not comfortable.
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