Lines

How many lines can be draw with 8 points, if three points lie on one line and the other any three points do not lie on the same line?

Correct answer:

n =  26

Step-by-step explanation:

n=1+3+4+5+6+7=26



Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar




Tips to related online calculators
Would you like to compute count of combinations?
See also our variations calculator.

Related math problems and questions:

  • Points in space
    roviny There are n points, of which no three lie on one line and no four lies on one plane. How many planes can be guided by these points? How many planes are there if there are five times more than the given points?
  • Lines
    lines In how many points will intersect 14 different lines, where no two are parallel?
  • Points in plane
    linear_eq The plane is given 12 points, 5 of which is located on a straight line. How many different lines could by draw from this points?
  • Circles
    circles How many different circles are determined by 9 points at the plane if 6 of them lie in a straight line?
  • Three points
    fun2 Mark three points E, F and G in the plane not lie on one line. a) Draw a line segment FG b) Construct halfline (ray) EG c) Draw a line EF
  • Elections
    gaspar_billboard In elections candidate 10 political parties. Calculate how many possible ways can the elections finish, if any two parties will not get the same number of votes.
  • Parallels and one secant
    lines_parallel_crossing There are two different parallel lines a, b, and a line c, that intersect the two parallel lines. Draw a circle that touches all lines at the same time.
  • Combinations of sweaters
    sveter I have 4 sweaters two are white, 1 red and 1 green. How many ways can this done?
  • The camp
    diary At the end of the camp a 8 friends exchanged addresses. Any friend gave remaining 7 friends his card. How many addresses they exchanged?
  • Combi-triangle
    komb_triangle On each side of the square is marked 10 different points outside the vertices of the square. How many triangles can be constructed from this set of points, where each vertex of the triangle lie on the other side of the square?
  • Prize
    metals How many ways can be rewarded 9 participants with the first, second, and third prizes in a sports competition?
  • Lie/do not lie
    lines_and_points The function is given by the rule f(x) = 8x+16. Determine whether point D[-1; 8] lies on this function. Solve graphically or numerically and give reasons for the your answer.
  • Three-digit numbers
    poker_hand_ranking How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)?
  • Subsets
    venn5 How many 19 element's subsets can be made from the 26 element set?
  • Phone numbers
    old_phone How many 7-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
  • Tournament
    turnaj Determine how many ways can be chosen two representatives from 34 students to school tournament.
  • Sweater
    colours Dana confuses sweater and wool has a choice of seven colors. In how many ways can she choose from three colors to the sleeves?