Sansue = Japanese Math for Kids 「英語で算数」

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.

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KK.10 Assemble development view

As shown in the figure below, the development view was drawn in the grid sheet 1 cm in one scale.

Find the total surface area and the volume of the solid made of being assembled this development view.