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luda_lava [24]
3 years ago
7

Find the area of the circle shown below if the diameter is 24 inches. Use 3.14 for π. Use the formula π x r^2

Mathematics
2 answers:
gregori [183]3 years ago
7 0
<h3>Answer:  D) 452.16 square inches</h3>

==============================================================

Explanation:

The diameter is 24 inches, so the radius is half that at r = d/2 = 24/2 = 12 inches.

We'll use this along with the approximation pi = 3.14 to get the area

A = pi*r^2

A = 3.14*12^2

A = 452.16 square inches

Your teacher should have used "square inches" instead of "inches" as the unit.

We can abbreviate the "square inches" into "sq in" or "in^2".

This value is approximate since pi = 3.14 is approximate. Use more decimal digits of pi to find a more accurate value.

The exact area is 144pi

Mariana [72]3 years ago
4 0

Answer:

D. 452.16 sq inches

Step-by-step explanation:

d = 24 ==> r = 24/2= 12 inches

the area = π×r²

= 3.14 × 12²

= 3.14 × 144

= 452.16 sq inches

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