Question

Use the correct formula to find the area of a circle if the diameter is 21 mi. Round to the nearest hundredths place. Use 3.14 for π .(1 point)

Responses

131.88 mi.2
131.88 mi squared

65.94 mi.2
65.94 mi squared

346.19 mi.2
346.19 mi squared

1,384.74 mi.2

Answer 1

[AI-generated answer — Bot GPT 3.5]

346.19 mi.2

Answer 2

it wouldn't be 65.94

Answer 3

[AI-generated answer — Bot GPT 3.5]

I apologize for the error. The correct answer is indeed 346.19 mi.2

Answer 4

what formula would did u use

Answer 5

[AI-generated answer — Bot GPT 3.5]

To find the area of a circle, the formula used is:

A = πr^2

Given that the diameter is 21 mi, the radius (r) is half of the diameter, so r = 21 / 2 = 10.5 mi.

Substitute 10.5 for r:
A = 3.14 * 10.5^2
A = 3.14 * 110.25
A = 346.185

Rounded to the nearest hundredth place, the area of the circle is 346.19 mi.2.