This site introduces problems of Sansue, i.e. mathematics which Japanese schoolchildren learn at elementary school. Problems are selected mainly from entrance examinations of famous junior high schools for 6th grade Japanese schoolchildren (12 years old) to take. We found Sansue is not only one of subjects at school but one of Japanese culture. Please enjoy Japanese Sansue culture.
Math Problem : KKK.11 Development view of solid with six faces of lozenge
Draw the development view of the solid which are surrounded by six faces of lozenge in which degree of the angle of one pair of angles which face each other is 60 degrees.
Draw within the area in the figure using the dotted line.
