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急求三棱锥侧面积公式~
急求三棱锥侧面积公式~
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2020-05-09 00:12
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沈锡玉
棱锥不是圆锥一样会有公式,其圆锥的展开图是一个扇形,而棱锥可以是正棱锥,也可能是不规则的棱锥,其圆锥的表面积也可是由圆台的表面积进行推理而来的,而棱锥应该一个一个面的加起来,没有具体的推导公式,但棱锥的体积v=1/3sh
2020-05-09 00:13:25
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