THERE ARE 16 POINTS IN A 4×4 GRID AS SHOWN IN THE FIGURE. DETERMIN...

9. - TRƯỜNG THCS HOÀNG XUÂN HÃN
TRƯỜNG THCS HOÀNG XUÂN HÃN

9.

There are 16 points in a

4

×

4

grid as shown in the figure. Determine the largest

integer n so that for any n points chosen from these 16 points, none 3 of them can

form an isosceles triangle.

Answer:_________________________.