Find the area of the triangle having the given measurements. Round to the nearest square unit. A=299. b = 18 meters, c= 8 meters O A. 18 square meters OB. 72 square meters O c. 35 square meters OD. 70 square meters Find the area of the triangle having the given measurements. Round to the nearest square unit. B = 20°, a = 3 feet, c = 10 feet O A. 10 square feet OB. 14 square feet OC. 21 square feet OD. 5 square feet Use Heron's formula to find the area of the triangle. Round to the nearest square unit. a =5.049 inches, b= 11 inches, c=8 inches O A. 42 square inches OB. 19 square inches O c. 40 square inches OD. 17 square inches The vectors u and v have the same direction. a. Find ul. b. Find vl. c. Is u = v? Explain. a.lu - (Simplify your answer. Type an exact answer, using radicals as needed.) b. IV = (Simplify your answer. Type an exact answer, using radicals as needed.) c. Is u =v? Explain. Choose the correct answer below. O A. Yes, because the vectors have different magnitudes and the same direction. OB. Yes, because the vectors have the same magnitude and the same direction. OC. No, because the vectors have different magnitudes and the same direction. OD. No, because the vectors have the same magnitude and the same direction. Sketch the vector as a position vector and find its magnitude. V=-61-4) Choose the correct answer below. ОА IM (Type an exact answer, using radicals as needed.)