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發問:
A pyramid is formed from four isoceles triangles with base-side 12 cm. The equal sides of the triangles are 16cm long. Find the volume of this pyramid.
最佳解答:
圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/untitled001.jpg?t=1207484715 Base Area = 12 x 12 = 144cm2 AF = sqr ( 162 - 62 ) = sqr 220 cm AG = sqr ( 220 - 62 ) = 2 sqr 46 cm Volume = 1/3 x Base area X height = 1/3 x 144 x 2 sqr 46 = 651cm3 ( 3 s.f. )
其他解答:
A pyramid is formed from four isoceles triangles with base-side 12 cm. The equal sides of the triangles are 16cm long. Find the volume of this pyramid.
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maths --voume question (ugent)發問:
A pyramid is formed from four isoceles triangles with base-side 12 cm. The equal sides of the triangles are 16cm long. Find the volume of this pyramid.
最佳解答:
圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/untitled001.jpg?t=1207484715 Base Area = 12 x 12 = 144cm2 AF = sqr ( 162 - 62 ) = sqr 220 cm AG = sqr ( 220 - 62 ) = 2 sqr 46 cm Volume = 1/3 x Base area X height = 1/3 x 144 x 2 sqr 46 = 651cm3 ( 3 s.f. )
其他解答:
A pyramid is formed from four isoceles triangles with base-side 12 cm. The equal sides of the triangles are 16cm long. Find the volume of this pyramid.
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