MathsGee Answers - Recent questions tagged pyramid
https://mathsgee.com/tag/pyramid
Powered by Question2AnswerWhat is the expected weight of an $80 \mathrm{~cm}$ tall chimpanzee?
https://mathsgee.com/29917/what-is-the-expected-weight-of-an-80-mathrm-tall-chimpanzee
In a study of a possible correlation between the height in $\operatorname{cm}(X)$ and weight in $\mathrm{kg}$ $(Y)$ of chimpanzees, a sample of 40 animals produces a correlation coefficient of $r=+0.813$ and a regression line with equation $\hat{Y}=0.34 X+19.5 .$ What is the expected weight of an $80 \mathrm{~cm}$ tall chimpanzee?Data Science & Statisticshttps://mathsgee.com/29917/what-is-the-expected-weight-of-an-80-mathrm-tall-chimpanzeeWed, 16 Jun 2021 08:33:14 +0000The aquarium with the length $45 \mathrm{~cm}$, the width $25 \mathrm{~cm}$ and the height $25 \mathrm{~cm}$ contains 19 liters of water. What is the height of an empty part of the aquarium?
https://mathsgee.com/29902/aquarium-mathrm-height-mathrm-contains-liters-height-aquarium
The aquarium with the length $45 \mathrm{~cm}$, the width $25 \mathrm{~cm}$ and the height $25 \mathrm{~cm}$ contains 19 liters of water. What is the height of an empty part of the aquarium?Mathematicshttps://mathsgee.com/29902/aquarium-mathrm-height-mathrm-contains-liters-height-aquariumWed, 16 Jun 2021 08:19:59 +0000The formula for the perimeter of a rectangle is given by $P=2 l+2 w$, where $l$ is the length and $w$ is the width.
https://mathsgee.com/28961/formula-perimeter-rectangle-given-where-length-w-the-width
The formula for the perimeter of a rectangle is given by $P=2 l+2 w$, where $l$ is the length and $w$ is the width. Assume the perimeter of a rectangular plot of land is $480 \mathrm{ft}$. The length is twice the width. Find the length of the rectangular plot of land.Mathematicshttps://mathsgee.com/28961/formula-perimeter-rectangle-given-where-length-w-the-widthSat, 29 May 2021 22:33:44 +0000Is the Great Pyramid of Giza the oldest of the Seven Wonders of the Ancient world and the last one still in existence?
https://mathsgee.com/28852/great-pyramid-giza-oldest-wonders-ancient-still-existence
Is the Great Pyramid of Giza the oldest of the Seven Wonders of the Ancient world and the last one still in existence?General Knowledgehttps://mathsgee.com/28852/great-pyramid-giza-oldest-wonders-ancient-still-existenceTue, 25 May 2021 13:14:52 +0000Calculate the volume of the remaining wood correct to the nearest cubic centimetre. Use formulae: $\mathrm{V}=\pi \mathrm{r}^{2} \mathrm{~h}$ and $\mathrm{V}=\frac{1}{2} \times$ Area of base $\mathrm{x} \perp$ height.
https://mathsgee.com/28125/calculate-remaining-correct-nearest-centimetre-formulae
<p>In the diagram below, $\Delta \mathrm{ECQ}$ is equilateral with sides $20 \mathrm{~cm}$. Vertices $\mathrm{E}, \mathrm{C}$ and $Q$ lie on the circumference of the circle at the top of a cylinder. M is the centre of the base of the cylinder. CEQM forms a triangular pyramid and is cut out of the wooden cylinder. The volume of the triangular pyramid is $3000 \mathrm{~cm}^{3}$.</p>
<p><img alt="" src="https://mathsgee.com/?qa=blob&qa_blobid=6871829483217078230" style="height:280px; width:234px"></p>
<p>Calculate the volume of the remaining wood correct to the nearest cubic centimetre. Use formulae:</p>
<p>$\mathrm{V}=\pi \mathrm{r}^{2} \mathrm{~h}$ and $\mathrm{V}=\frac{1}{2} \times$ Area of base $\mathrm{x} \perp$ height.</p>Mathematicshttps://mathsgee.com/28125/calculate-remaining-correct-nearest-centimetre-formulaeThu, 13 May 2021 04:22:53 +0000The base of a right pyramid is a rectangle of length $80 \mathrm{~cm}$ and width $60 \mathrm{~cm}$. Each slant edge of the pyramid is $130 \mathrm{~cm}$. Calculate the volume of the pyramid.
https://mathsgee.com/28081/pyramid-rectangle-mathrm-pyramid-calculate-volume-pyramid
The base of a right pyramid is a rectangle of length $80 \mathrm{~cm}$ and width $60 \mathrm{~cm}$.<br />
Each slant edge of the pyramid is $130 \mathrm{~cm}$. Calculate the volume of the pyramid.Data Science & Statisticshttps://mathsgee.com/28081/pyramid-rectangle-mathrm-pyramid-calculate-volume-pyramidWed, 12 May 2021 05:34:39 +0000If you make different "plane cuts" through all 4 of the triangles -- without cutting through the square -- which different shapes will the cuts make?
https://mathsgee.com/27060/different-through-triangles-without-cutting-through-different
An Egyptian pyramid has a square base and four triangular faces. Use clay or Play- Doh to make a pyramid model. If you make different "plane cuts" through all 4 of the triangles -- without cutting through the square -- which different shapes will the cuts make? A plane cut is kind of like a cheese cutter -- it will be straight, not curved.Mathematicshttps://mathsgee.com/27060/different-through-triangles-without-cutting-through-differentWed, 21 Apr 2021 09:56:02 +0000If one of the base's corners has an angle of $\dfrac{5\pi}{ 12}$ , what is the pyramid's surface area?
https://mathsgee.com/25870/one-bases-corners-has-angle-dfrac-what-pyramids-surface-area
A pyramid has a parallelogram shaped base and a peak directly above its center. Its base's sides have lengths of $8$ and $2$ and the pyramid's height is $9$ . If one of the base's corners has an angle of $\dfrac{5\pi}{ 12}$ , what is the pyramid's surface area?Data Science & Statisticshttps://mathsgee.com/25870/one-bases-corners-has-angle-dfrac-what-pyramids-surface-areaFri, 02 Apr 2021 22:19:09 +0000Please show me a pentagonal pyramid.
https://mathsgee.com/22820/please-show-me-a-pentagonal-pyramid
Please show me a pentagonal pyramid.Mathematicshttps://mathsgee.com/22820/please-show-me-a-pentagonal-pyramidSun, 06 Dec 2020 11:03:42 +0000Please remind me how a pyramid looks like.
https://mathsgee.com/22150/please-remind-me-how-a-pyramid-looks-like
Please remind me how a pyramid looks like.Mathematicshttps://mathsgee.com/22150/please-remind-me-how-a-pyramid-looks-likeWed, 02 Dec 2020 06:07:51 +0000Find the length of the side of the cut-out square so that the box has the largest possible volume. Also, find the volume of the box.
https://mathsgee.com/14183/find-length-side-square-largest-possible-volume-find-volume
A cardboard box manufacturer wishes to make open boxes from rectangular pieces of cardboard with dimensions 40 cm by 60 cm by cutting equal squares from the four corners and turning up the sides. Find the length of the side of the cut-out square so that the box has the largest possible volume. Also, find the volume of the box.Mathematicshttps://mathsgee.com/14183/find-length-side-square-largest-possible-volume-find-volumeSat, 06 Jun 2020 21:34:53 +0000Which of the following objects are pyramids?
https://mathsgee.com/9775/which-of-the-following-objects-are-pyramids
<p>Which of the following objects are pyramids?</p>
<p><img alt="" src="https://mathsgee.com/?qa=blob&qa_blobid=17256642613585646775" style="height:235px; width:600px"></p>
<p> </p>Mathematicshttps://mathsgee.com/9775/which-of-the-following-objects-are-pyramidsFri, 01 May 2020 01:01:28 +0000Which of the following objects has the shape of a pyramid?
https://mathsgee.com/9773/which-of-the-following-objects-has-the-shape-of-a-pyramid
<p>Which of the following objects has the shape of a pyramid?</p>
<p><img alt="" src="https://mathsgee.com/?qa=blob&qa_blobid=6442986540610872726" style="height:211px; width:600px"></p>Mathematicshttps://mathsgee.com/9773/which-of-the-following-objects-has-the-shape-of-a-pyramidFri, 01 May 2020 00:57:57 +0000How many faces does a square-based pyramid has?
https://mathsgee.com/7990/how-many-faces-does-a-square-based-pyramid-has
How many faces does a square-based pyramid has?Mathematicshttps://mathsgee.com/7990/how-many-faces-does-a-square-based-pyramid-hasFri, 24 Apr 2020 04:48:45 +0000How many vertices does a square-based pyramid has?
https://mathsgee.com/7989/how-many-vertices-does-a-square-based-pyramid-has
How many vertices does a square-based pyramid has?Mathematicshttps://mathsgee.com/7989/how-many-vertices-does-a-square-based-pyramid-hasFri, 24 Apr 2020 04:47:41 +0000A pyramid with a square base with a side length of 16cm is sketched below. P lies on the square base directly below A. The volume of the pyramid is $64 cm^3$
https://mathsgee.com/6595/pyramid-square-length-sketched-square-directly-volume-pyramid
<p>A pyramid with a square base with a side length of 16cm is sketched below. P lies on the square base directly below A. The volume of the pyramid is $64 cm^3$</p>
<p><img alt="" src="https://mathsgee.com/?qa=blob&qa_blobid=14420659898217103576" style="height:356px; width:600px"></p>
<p> </p>
<ol>
<li>Show that the prependicular height of the pyramid, AP, is 7.5cm</li>
<li>Hence, determine the total surface area of the pyramid</li>
</ol>
<p> </p>Mathematicshttps://mathsgee.com/6595/pyramid-square-length-sketched-square-directly-volume-pyramidWed, 08 Apr 2020 17:35:08 +0000Which base shape ensures that a pyramid is most stable?
https://mathsgee.com/1248/which-base-shape-ensures-that-a-pyramid-is-most-stable
Which base shape ensures that a pyramid is most stable?Mathematicshttps://mathsgee.com/1248/which-base-shape-ensures-that-a-pyramid-is-most-stableMon, 27 May 2019 03:16:18 +0000