Question

how many no. of straight line are formed using 80 points, in which 3 points are colinear​

Answer 1

Answer:

Step-by-step explanation:since there are 80 points.

Therefore if we draw line point to point then .

79 lines will be formed.

Since 3 lines are collinear .

Then 79-3 = 76 .

Therefore. 76 line will be form .

Answer 2

this yo answer okkkkkkkkk