The sides of a pyramid are made out of matching triangles. The pyramids of Giza, in Egypt, are more than 4, 500 years old. Learn more about what pyramids are and what they are used for in Discovering Pyramids, a title in the 3D Objects series.
语言 英语 ● 格式 PDF ● 网页 24 ● ISBN 9781489649850 ● 文件大小 7.9 MB ● 年龄 17-10 年份 ● 出版者 Weigl Publishers Inc. ● 发布时间 2016 ● 下载 24 个月 ● 货币 EUR ● ID 7212039 ● 复制保护 Adobe DRM
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