Use the distributive property to write the following expression in expanded form 2 ( b + c)
2 answers:
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if the diameter is 15, its radius is half that, or 7.5
Circle b:
Diameter = x
Radius =
Area =
Circle a:
Diameter =
Radius =
Area =
Thus,
Area of circle b to area of circle a
=
÷ 
= × 
= 4
Hence, the area of circle b is 4 times the area of circle a.
Diameter = x
Radius =
Area =
Circle a:
Diameter =
Radius =
Area =
Thus,
Area of circle b to area of circle a
=
=
= 4
Hence, the area of circle b is 4 times the area of circle a.