Determine the sine of ∠A.
A) 12/13
B) 12/5
C) 5/12
D) 5/13
E) 13/12
Farmer Brown has the plot of land shown in the picture. He needs to fence it in for his cows to be able to graze there. How much fencing does he need (round to 3 decimal places)?
A) 274.185 feet
B) 285.185 feet
C) 300.158 feet
D) 533.158 feet
E) 965.158 feet
Answer: 12/13
Solution: 12/13. The sine of the acute angle of a right triangle is the opposite side divided by the hypotenuse.