yego.me
yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Volume of rectangular pyramids using cubes | Grade 7 (TX TEKS) | Khan Academy

less than 1m read
·Nov 10, 2024

We'll be exploring the volumes of rectangular pyramids today with cubes and rectangular prisms. This is a cube; all the sides are the same length. To find the volume of a cube, I can multiply the length by the width by the height. For example, if the length of the cube is five and all sides are the same, then to find the volume I would do 5 * 5 * 5 = 125 cm cubed.

I can break this prism into three rectangular pyramids that are all congruent. So now we have a cube that's actually made out of three rectangular pyramids, and we can see here that all of the rectangular pyramids are congruent. The base of each rectangular pyramid is a square. The square is the same size as one face of our cube, and they all have the same height.

Since all of these rectangular pyramids are congruent, they all have the same volume. To summarize so far, three congruent pyramids can form a cube, and the volume of one of the pyramids will be 1/3 the volume of the entire cube. This is true for all cubes, but what about other rectangular prisms where the sides have different lengths?

How Millionaires Think About Business | ft. Randall Kaplan
Introduction to vertex form of a quadratic

More Articles

View All
Proof: parallel lines have the same slope | High School Math | Khan Academy
What I want to do in this video is prove that parallel lines have the same slope. So let’s draw some parallel lines here. So that’s one line, and then let me draw another line that is parallel to that. I’m claiming that these are parallel lines. Now I’m …
Winner Watch for Black Outfit #shorts #watch
All right, so now we have this all black outfit, and you actually were able to find three amazing watches under 10k: Cartier, we have Lene, and we have Baume & Mercier. Yeah, so which one are you going with? Very important to have entry-level prices,…
Why Does the Moon Orbit Earth?
Now tell me what does the moon do? Uh, the moon orbits the Earth. I know it. Let’s do an orbit. Can we do an orbit? Okay, so go like this. I’m guessing, I’m guessing around, around. If you will, you spinning it? Are you going to… doesn’t it stay? Isn’t it…
15 RULES of CHANGE
Change is inevitable. Many people have tried opposing it, only to learn that lesson the hard way. You’re consuming this content because a big change is about to happen in your life. This resource will guide you through it. Here are 15 Rules of Change. Ru…
Lex Fridman s Donaldem Trumpem s automatickými titulky pro ty z vás, kterým se je nedaří aktivovat.
The following is a conversation with Donald Trump on this The Lex Freedman podcast. They get any smaller and smaller, they get smaller, right? I mean, people do respect you more when you have a big camera for some reason. No, it’s cool. And about 20 guys…
Australia's Housing Crisis is Insane.
So we open the bidding, ladies and gentlemen, at 1,100,000. I’ve never seen a situation in housing like we’re seeing today. Australia’s housing crisis will likely get worse before it gets better. A system where it’s arguably easier to buy your second hous…