The maximum distance that the light on a lighthouse can reach is 20 miles. If the light can rotate 360 degrees, find the total area that it can light.

we need the options

step-by-step explanation:

43

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

answer: 48

just remember to use pemdas:

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