Page 66 - NUMINO Challenge_C2
P. 66
Problem solving Key Points
1 There are nine dots spaced equally apart on a Change the length
dotted board. Draw all the isosceles triangles by of the base and look
connecting the dots. Triangles that are the same for isosceles
after being rotated or flipped are considered the triangles.
same.
2 There are five dots spaced equally apart on a Find all the triangles
circle. How many triangles can be drawn using with sides as shown
these dots as vertices? below.
63Geometry
1 There are nine dots spaced equally apart on a Change the length
dotted board. Draw all the isosceles triangles by of the base and look
connecting the dots. Triangles that are the same for isosceles
after being rotated or flipped are considered the triangles.
same.
2 There are five dots spaced equally apart on a Find all the triangles
circle. How many triangles can be drawn using with sides as shown
these dots as vertices? below.
63Geometry
