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4R2012 preTest8A

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4R2012 preTest8A

  1. 1. Math 4R Test8A Name:For each question: Show all work. Justify each answer in the space provided. Circle final answers.(1) A TV camera at ground level is filming the lift-off of the spaceshuttle at a point 2000 ft from the launch pad.(1a) Represent this situation by drawing a right ∆. Label the angle of elevation as θ, the altitude of the shuttle as s, the hypotenuse as h and the base as 2000 ft.(1b) Let s = 1000 ft, find θ.(1c) Let s = 1000 ft, find h.(1d) Let s = 4000 ft, find θ.(1e) Let s = 4000 ft, find h. a:TEST8A.4Rt
  2. 2. Math 4R Test8A Name:For each question: Show all work. Justify each answer in the space provided. Circle final answers.(2) You are driving toward a mountain range. The angle ofelevation to the peak of the largest mountain is 3.5° After you drive 13miles closer to the mountain, you find that the angle of elevation is 9°Find the height of the mountain. Draw and label 2 right ∆s with acommon right angle depicting this scenario. a:TEST8A.4Rt
  3. 3. Math 4R Test8A Name:For each question: Show all work. Justify each answer in the space provided. Circle final answers.(3) (AAS) Construct ∆ABC such that m∠A=120°, m∠C=30° and thelength of side c=10”. Solve this triangle and find the area. a:TEST8A.4Rt
  4. 4. Math 4R Test8A Name:For each question: Show all work. Justify each answer in the space provided. Circle final answers.(4) (SAS) Construct ∆ABC such that m∠A=120°, the length of sideb=10’ and the length of side c=5’. Solve this triangle and find thearea. a:TEST8A.4Rt

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