What is the best match?

elliptic space

    { 1 } - one cannot construct a figure with two straight lines
    { 2 } - the sum of the angles of a triangle is always greater than 180 degrees
    { 3 } - Lobachevskian space

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Directions: Click on a number from 1 to 3.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























1 is wrong. Please try again.

elliptic space

Euclidean space <=> one cannot construct a figure with two straight lines

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2 is correct!

elliptic space

    { 1 } - one cannot construct a figure with two straight lines
    { 2 } - the sum of the angles of a triangle is always greater than 180 degrees
    { 3 } - Lobachevskian space

elliptic space <=> the sum of the angles of a triangle is always greater than 180 degrees

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Before continuing, you might try some wrong answers.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























3 is wrong. Please try again.

elliptic space

    { 1 } - one cannot construct a figure with two straight lines
    { 2 } - the sum of the angles of a triangle is always greater than 180 degrees
    { 3 } - Lobachevskian space

hyperbolic space <=> Lobachevskian space

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the end