58. What is the surface area of the sphere?

    

    6. 100 π in . 2 100 pi , in , . squared
    7. 100 π in . 3 100 pi , in , . cubed
    8. 500 3 π in . 2 500 over 3 , pi , in , . squared
    9. 400 π in . 2 400 pi , in , . squared

59. What type of polygon is the figure below?

    

    1. concave regular
    2. concave irregular
    3. convex regular
    4. convex irregular

60. If O is the center of the circle, what can you conclude from the diagram?

    

    6. A B > A D eh b greater than eh d
    7. A B = A D eh b equals eh d
    8. A B < A D eh b less than eh d
    9. There is not enough information to compare AB and AD.

61. The height of the cone below is 5.

    

    What is the radius of the cone?

    1. 3
    2. 10 square root of 10
    3. 3.75
    4. 4

Short Response

62. How do you construct a Δ D E F cap delta d e f  congruent to Δ A C B ? cap delta eh c b question mark

    

63. Rieko is trying to prove the following theorem:

    

    If ABCD is a parallelogram, and ∠ A D E ≈ ∠ C B F , angle , eh d e almost equal to , angle c b f comma  then DEBF is a parallelogram.

    One strategy is to show that both pairs of opposite angles are congruent. How would you show that ∠ E D F ≈ ∠ E B F ? angle , e d f almost equal to , angle e b f question mark

Extended Response

64. In one game on a reality TV show, players must dig for a prize hidden somewhere within a sand-filled circular area. There are 18 posts equally spaced around the circle and clues are given so that players narrow the location by crossing two ropes between the posts. What is the angle measure w formed by the ropes in the diagram? Explain your reasoning.

    

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