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A circular table top has a radius of 24 inches. What is the area of the table top, to the nearest square inch? Use 3.14 for π.

A. 75 in.²
B. 151 in.²
C. 1809 in.²
D. 7235 in.²


Sagot :

To find the area of a circular table top with a radius of 24 inches, we can use the formula for the area of a circle:

[tex]\[ \text{Area} = \pi \times r^2 \][/tex]

where [tex]\(\pi\)[/tex] is approximately 3.14, and [tex]\(r\)[/tex] is the radius of the circle.

1. Formula Setup:

The given radius [tex]\(r\)[/tex] is 24 inches and [tex]\(\pi\)[/tex] is 3.14. Therefore, the formula to calculate the area becomes:

[tex]\[ \text{Area} = 3.14 \times 24^2 \][/tex]

2. Calculate [tex]\(r^2\)[/tex]:

First, square the radius:

[tex]\[ 24^2 = 576 \][/tex]

3. Multiply by [tex]\(\pi\)[/tex]:

Next, multiply the squared radius by [tex]\(\pi\)[/tex]:

[tex]\[ \text{Area} = 3.14 \times 576 \][/tex]

4. Resulting Calculation:

[tex]\[ \text{Area} = 1808.64 \][/tex]

5. Rounding to the Nearest Square Inch:

To round 1808.64 to the nearest square inch, we look at the digit in the tenths place, which is 6. Since it is 5 or greater, we round up:

[tex]\[ \text{Area} \approx 1809 \text{ square inches} \][/tex]

Thus, the area of the table top, to the nearest square inch, is:

[tex]\[ \boxed{1809 \text{ in}^2} \][/tex]
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