use the formula A=1/2 ab sin C to determine the area of △ABC. what is the area to the nearest square inch if a=16 inches,b=18 inches and ∠C=43 degrees
the ansnwer is either 105 inches^2,196 inches^2,98 inches^2, or 134inches^2
To find the area of triangle ABC using the given formula, we substitute the values into the formula and calculate:
A = (1/2)(16)(18)(sin 43)
A ≈ (1/2)(16)(18)(0.682)
A ≈ 97.632
Rounding to the nearest square inch, the area of triangle ABC is approximately 98 inches^2.
Therefore, the correct answer is 98 inches^2.