Grade 9 Math: Intro to Geometry Pyramids
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True or False? A pyramid is a polyhedron that has a base, which can be any polygon, and three or more triangular faces that meet at a point called the apex.
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We have a pyramid with a base length of 6cm, a base width of 6cm and the slant height of the pyramid is 12cm. What is the Surface area?
90cm\(^2\)
270cm\(^2\)
180cm\(^2\)
360cm\(^2\)
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We have a pyramid with a base length of 18cm, a base width of 20cm and the height of the pyramid is 40cm. What is the Surface area?
1922.15cm\(^2\)
1239.45cm\(^2\)
4322.12cm\(^2\)
2187.62cm\(^2\)
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We have a pyramid with a base length of 36cm, a base width of 33cm and the height of the pyramid is 99cm. What is the volume?
43421cm\(^3\)
24555cm\(^3\)
52041cm\(^3\)
39204cm\(^3\)
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The volume of the pyramid is 9720cm\(^3\). The base length is 45cm. The base Width is 18cm. What is the height of the pyramid?
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