Page 77 - NUMINO Challenge_D1
P. 77
Creative Thinking
1 A pyramid is cut across a plane that is parallel to the base. If the
number of vertices of the lower solid figure is 26, what is the total
number of faces of the two solid figures?
2 Write the names of the solid figures A and B that match the conditions
given below.
Conditions
A has a base and a top, and has rectangles as side
faces. B has a base and has triangles as side faces.
A and B have the same number of edges.
The difference in the number of vertices of solid figures
A and B is 1.
74 NUMINO Challenge D1
1 A pyramid is cut across a plane that is parallel to the base. If the
number of vertices of the lower solid figure is 26, what is the total
number of faces of the two solid figures?
2 Write the names of the solid figures A and B that match the conditions
given below.
Conditions
A has a base and a top, and has rectangles as side
faces. B has a base and has triangles as side faces.
A and B have the same number of edges.
The difference in the number of vertices of solid figures
A and B is 1.
74 NUMINO Challenge D1
