Page 74 - NUMINO Challenge_D1
P. 74
Problem solving
1 The base of a solid figure is a square with sides Key Points
of 3 cm each. It has isosceles triangles as faces
with a height of 6 cm each. Find the name of this Which solid figure
solid figure and the area of its net. has isosceles
triangles as sides?
2 The following is a net of the prism that has a An octagonal prism
regular octagon as its base and top. Make a has 24 edges.
solid figure using the net, and find the sum of all
the edges in the solid figure.
8 cm 3 cm
71Geometry
1 The base of a solid figure is a square with sides Key Points
of 3 cm each. It has isosceles triangles as faces
with a height of 6 cm each. Find the name of this Which solid figure
solid figure and the area of its net. has isosceles
triangles as sides?
2 The following is a net of the prism that has a An octagonal prism
regular octagon as its base and top. Make a has 24 edges.
solid figure using the net, and find the sum of all
the edges in the solid figure.
8 cm 3 cm
71Geometry
