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Place the circles in order from the circle with the smallest area to the circle with the largest area.

Place the circles in order from the circle with the smallest area to the circle with-example-1

2 Answers

5 votes

Answer:

4th, 3rd, 1st, 2nd.

Explanation:

User Nontechguy
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4 votes

Answer:

4th, 3rd, 1st, 2nd.

Explanation:

Comparing the radii will give the same result as comparing the areas because the areas are directly proportional to the square of the radii (that is Area = pi r^2).

The second circle has a radius of 27 units.

The 4th circle has a radius of 19/2 = 9.5 units.

The third circle radius is worked out below:

2 pi r = 87.92 so r = 87.92 / 2 pi = 13.99 units.

The first one has radius = √ (1040.09 / pi ) = 18.2 units.

I did it this way because it was less calculation!

User Vinay Verma
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4.8k points