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在众多的课外资料中,作者都曾遇到过这样两道有关三棱锥的题目:题目1三棱锥三条侧棱两两垂直,三个侧面与底面所成二面角分别为30°,45°,60°,底面积为1,侧面积为().
In many extra-curricular materials, the authors have encountered two such questions relating to the triangular pyramid: Item 1 The three sides of the triangular pyramid are perpendicular to each other, and the dihedral angles between the three sides and the bottom surface are 30° and 45°, respectively. , 60°, base area 1, side area ().