1. Find the radius of the semicircle by dividing the diameter by 2 to get 1.8
2. Find the area of the semicircle. Do this by substituting the equation to find the area of a semicircle with the numbers given and solving. 3.14(1.8^2)/2 = 5.0868
3. Find the area of the triangle. Do this by substituting the equation to find the area of a semicircle with the numbers given and solving. 1/2(3.6*4.8) = 8.64
Ahh... this is pretty easy!! . Locomotive is 40 feet. . Model is 16. . So? . Divide 40 by 16!! . What's that? . 2.5. . So your answer choice is 2.5 . Hope I helped!!
