Topic: Rational and Irrational Numbers (roots)
Part A
The pyramids have always fascinated Kr...
Mathematics, 22.04.2021 08:00 eddyy5900
Topic: Rational and Irrational Numbers (roots)
Part A
The pyramids have always fascinated Kristina, so she wants to build two model pyramids to put on her mantel. She wants her model of Khufu’s pyramid to have a volume of 73.5 cubic inches and a height of 4.5 inches. What would the side length of the base of the pyramid be? Is this number rational or irrational? Why?
Part B
The volume of Khafre’s pyramid is about 9/10 the volume of Khufu’s pyramid. If Kristina wants to make the second model pyramid so its volume is 9/10 the volume of the first model pyramid, what volume should she make the second model pyramid?
Part C
If the height is 4.41 inches and the volume is the volume found in Part B, what will the side length of the pyramid’s base be? Is the number rational or irrational? Why?
Part D
For the model to be to scale, the ratio of the height to the side length should be the same for both the actual pyramid and the model. Is the model of Khufu’s pyramid to scale? If not, is it close?
Part E
Is the model of Khafre’s pyramid to scale? If not, is it close?
(need this witthin 10 days)
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