Geometry Practice Test 11

(1) In hyperbolic geometry,
    (a) a rectangle exists                    
    (b) all triangles have angle sum of geometry practice test 11 _gr_1.gif]    
    (c)  some triangles have angle sum of geometry practice test 11 _gr_2.gif]         
    (d) there are no rectangles

(2) In Euclidean geometry,   (recall "defective triangle" means the defect of the triangle is zero)
    (a) if one defective triangle exists then all triangles are defective,
    (b) there are some defective triangles
    (c) the sum of any two angles in a triangle is less than or equal to geometry practice test 11 _gr_3.gif]
    (d)  none of the above

(3) In neutral geometry,
    (a) if a defective triangle does not exist, then a rectangle exists.
    (b)  if a defective triangle does exist, then a rectangle exists.
    (c) none of the above

(4) Given the hypothesis of Wallis' postulate, namely:  Given any triangle geometry practice test 11 _gr_4.gif] and given any segment geometry practice test 11 _gr_5.gif]; the conclusion of Wallis' postulate is:
    (a) there exists a triangle geometry practice test 11 _gr_6.gif] (having geometry practice test 11 _gr_7.gif] as one of its angles) that is congruent to geometry practice test 11 _gr_8.gif]    
    (b) there exists a triangle geometry practice test 11 _gr_9.gif] (having geometry practice test 11 _gr_10.gif] as one of its angles) that is similiar to geometry practice test 11 _gr_11.gif]    
    (c) there exists a triangle geometry practice test 11 _gr_12.gif] (having geometry practice test 11 _gr_13.gif] as one of its sides) that is similiar to   geometry practice test 11 _gr_14.gif]
    (d) none of the above

(5) Clairaut's Axiom states:
    (a) there are no rectangles
    (b) Euclid's fifth postulate is equivalent to Hilbert's parallel postulate
    (c) Hilbert's parallel postulate  is equivalent to the angle sum of every triangle is geometry practice test 11 _gr_15.gif]
    (d) none of the above

(6) The Universal Hyperbolic Theorem states that,
    (a) for every line geometry practice test 11 _gr_16.gif] and every point geometry practice test 11 _gr_17.gif]not on line there pass through geometry practice test 11 _gr_18.gif] at least two distinct parallels to geometry practice test 11 _gr_19.gif]
    (a) for every line geometry practice test 11 _gr_20.gif] and every point geometry practice test 11 _gr_21.gif] not on line there pass through geometry practice test 11 _gr_22.gif] exactly two distinct parallels to geometry practice test 11 _gr_23.gif]
    
(a) for every line geometry practice test 11 _gr_24.gif] and every point geometry practice test 11 _gr_25.gif]not on line there pass through geometry practice test 11 _gr_26.gif] at least one distinct parallels to geometry practice test 11 _gr_27.gif]
    
(a) for every line geometry practice test 11 _gr_28.gif] and every point geometry practice test 11 _gr_29.gif]not on line there pass through geometry practice test 11 _gr_30.gif] exactly one distinct parallels to geometry practice test 11 _gr_31.gif]

(7) The triangle congruence criterion geometry practice test 11 _gr_32.gif] is valid in
    (a) neutral geometry only
    (b) Euclidean geometry only
    (c) Euclidean geometry and hyperbolic geometry
    (d) hyperbolic geometry only     

(8) Define Hyperbolic geometry.
    

(9) Given a ray geometry practice test 11 _gr_33.gif] between geometry practice test 11 _gr_34.gif] and geometry practice test 11 _gr_35.gif] prove that there exists a segment whose two endpoints are on the opposite rays of   geometry practice test 11 _gr_36.gif] and geometry practice test 11 _gr_37.gif] respectively and such that the opposite ray of geometry practice test 11 _gr_38.gif] intersects this segment.
    


(10) Given segment geometry practice test 11 _gr_39.gif] prove that there exists points geometry practice test 11 _gr_40.gif] such that geometry practice test 11 _gr_41.gif], geometry practice test 11 _gr_42.gif] geometry practice test 11 _gr_43.gif] geometry practice test 11 _gr_44.gif] and geometry practice test 11 _gr_45.gif]
    

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Geometry Practice Test 11
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Written by Smith, David A.
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