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Makovka662 [10]
3 years ago
6

If the area of a circle is 20.4 units squared, what is the radius?

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

r = 2.55

Step-by-step explanation:

The formula for finding the radius of a circle using the area is r = √A/π

with the r being the radius. the A being the area, and the π being pi (we'll use 3.14).

So the equation should look like this:

r = √(20.4/3.14)

Find the quotient of 20.4/3.14 and round to the nearest tenth

r = √6.5

Find the square root and round to the nearest hundredth

r = 2.55

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