Question 49

The possible triangles are:

4,4,4

3,4,5

5,5,2

Any other change will lead to a shape that cannnot be closed and therefore is not a triangle. Note the large difference between three triangles and the next answer up (ten triangles). This should help you settle on three quicker than if the next answer up were say four because of the large gap between three and ten.

The possible triangles are:

4,4,4

3,4,5

5,5,2

Any other change will lead to a shape that cannnot be closed and therefore is not a triangle. Note the large difference between three triangles and the next answer up (ten triangles). This should help you settle on three quicker than if the next answer up were say four because of the large gap between three and ten.