a regular pyramid has a slant heigh of 9 meters. the base is a regular hexagon with sides that measures 4 meters. find the lateral area
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2007-10-28 16:27:04 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The slant height is the same as the height of the triangular face, while each side of the hexagon is the base of one of the triangular faces. The area of a triangle is 0.5*bh, where b is the length of the base and h is the height. So each of the six triangular faces has an area of 0.5(4 m)(9 m) = 18 m^2, and the lateral area (that is, the area of the six lateral faces, or all faces excluding the base) is 6*(18 m^2) = 108 m^2.
2007-10-31 09:44:19 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
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2016-10-14 07:30:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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2007-10-28 16:43:44 · answer #3 · answered by john 4 · 0⤊ 1⤋