Question

The beam from a lighthouse is visible for a distance of 15 mi. To the nearest square mile, what is the area covered by the beam as it sweeps in an arc of 270°?

Answer 1

18

Answer 2

How is it 18?

Answer 3

i meant to say 56π\9

Answer 4

ok so to find the area of an arc you would do
arc ngle/360*pi*r^2 which is
270/360*3.14*15^2

Answer 5

So would that be 530. 14, rounded to 530 mile^2? Correct?

Answer 6

Yep that would be tight

Answer 7

*right

Answer 8

Thanks :)

Answer 9

np