One circle has a diameter of 6 inches. a second, larger circle has a diameter that is four times the diameter of the first circle. what is the ratio of the area of the smaller circle to the larger circle? a 2: 3 c 1: 16 b 1: 6.4 d 1: 64

Let's find the answers.
Small Circle
The radius is half of the diamter. 3 inches.
π×r²=A
We'll use 3.14 for pi.
3.14×9
28.26 in²
Bigger Circle
6×4= 24
So the diameter is 24. The radius is 12.
3.14×12²
3.14×144
452.16 in²
Let's divide.
452.16÷ 28.26
16.
So C. 1:16.

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