there are 13 total triangles in the puzzles. 1 on top. 3 middle. 5 bottom. that's 9. plus the big one is 10. plus there are 3 hidden made up of several of the inside triangles. 13 total.=]
Infinitely many. When you have one equilateral triangle, you can join up the midpoints of its sides to make into 4 more equilateral triangles. And then each one of those can be split up and so on.
no triangles
it has 13 triangles
There are no triangles.
Two triangles
A lot of the mental tests given on Ellis Island were puzzles that, normally, would seem easy, but not for those many immigrants who had very little education. Or for those who were mentally disabled.
Infinitely many. Any triangle inside a quadrilateral can be divided into two without affecting the quadrilateral but increasing the number of triangles by 1. And then one of those triangles could be spilt into two and so on - without end.
40° + 25° + 115° = 180°, which is the correct total for the angles (in degrees) of a triangle. There are infinitely many triangles with those angles.
there are 27 triangles in a triangle
Infinitely many. When you have one equilateral triangle, you can join up the midpoints of its sides to make into 4 more equilateral triangles. And then each one of those can be split up and so on.
There are 15 triangles in a 17-agon
15 triangles!!!!!!!!!!
no triangles
There are no triangles.
15 triangles
it has 13 triangles
no, you can increase you cognitive abilities, but your IQ will always remain about the same.