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Math Help - Geometry Question

  1. #1
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    Geometry Question

    Questions 3 and 4: Determine whether or not the given side lengths will form a right triangle.

    3. 15, 11, and 2 x square root of 26

    a. right triangle
    b. not a right triangle

    4. square root of 41, 4, and 5

    a. right triangle
    b. not a right triangle

    17. If tan=5/4 calculate the value of cos

    a. 5/ square root of 41
    b. 4/ square root of 41
    c. 5/3
    d. 4/3
    18. If cos= 2xsquare root of 10/7 calculate the value of sin.

    a. 3/7
    b. square root of 29/7
    c. square root of 69/7
    d. square root of 89/7
    19. If sin= 1/ square root of 2 find the value of 0.

    a. 30
    b. 45
    c. 60
    d. 90

    Questions 20-22: Use a calculator to find the trigonometric value to four decimal places.

    20. cos 88 =

    a. 0.0354
    b. 0.0114
    c. 0.9994
    d. 0.0349

    21. sin 47 =

    a. 0.7314
    b. 0.6820
    c. 0.1236
    d. 1.0734

    22. tan 8 =

    a. 6.7997
    b. 0.1405
    c. 0.1392
    d. 5.6713

    26. A riding lawnmower can drive up a 27 incline. In order for a ramp designed to reach a truck bed that is 3 feet above the ground to have a 27 incline, how long should the ramp be?

    a. 3.37 ft
    b. 5.89 ft
    c. 6.61 ft
    d. 9 ft
    Last edited by cteague; February 3rd 2009 at 05:08 PM. Reason: New Questions
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  2. #2
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    Quote Originally Posted by cteague View Post




    12. The best reason for statements 3, 5, and 7 in this proof is
    1. Theorem 3.1. Alternate interior angles are congruent.
    2. Theorem 3.2. Corresponding angles are congruent.
    3. Theorem 3.3. Alternate exterior angles are congruent.
    4. Theorem 3.4. Interior angles on the same side of the transversal are supplements.
    13. The best statement for reason 6 of this proof is
    1. and are supplements.
    2. (3.) This one
    14. The best statement for reason 8 of this proof is
    1. and are supplements.
    2. (4.) This one
    ..
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