WEBVTT
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in this problem it is us that find the volume
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. We of the described solid as a pyramid of
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height edge. And based and is that equal little
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triangles with sides eight at a dry had drawn.
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Right So this is a this is a 3D figure
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we have so Mhm. We will right here for
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the area of a triangle. So area of equilateral
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triangle is what it is nothing but rude. three
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x 4 A square that A is this side of
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the triangle. Right. So this is the basic
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formula we know about the equally to tangle. We
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need to remember this always. Okay so now uh
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okay by similar triangle properties by similar triangle property we
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can say that okay Is nothing but this is equals
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to rule three x 4 and one minus. Bye
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bye edge. Woods, correct. Mhm. Yeah
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. Okay so it will be Through three x 4
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is square. One minus bye bye edge in square
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. Mhm. Right okay, so now this is
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the area of the triangle. Yes, but to
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find the area of volume or like this too difficult
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triangle has the area but for the potato I drawn
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. Mhm. So for the cadre had drawn we
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will just find why you So volume will be one
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. Well you will be close to Integration of 0
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to its right, this is the height. We
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don't wait, you can say no this is route
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three by uh huh. Is quest one minus.
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Bye bye at the square. Do a big catch
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split. Thanks. So this will be deep like
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you. Yeah thanks. So now we will right
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here the integration after integration Route three x 4 square
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is taking less common and we will be do their
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thing 1- My baby. Which was when this
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movie H by three one minus one whole few because
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we'll replace H by three bun kill here. Thanks
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. Stop the integration we're getting this is a question
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Blue three by ford is square. This is you
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know this is Plus Age Like three. Mhm.
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So this will give us the war numerous. The
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it was to root please by a court He squared
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into age 93. So this will finally be be
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questioned Room three x 12. Aah beats. Yeah
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. Right so this is the basically this is basic
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the name the volume right? Volume of. Sorry
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I hope you understand the concept. Thank you for
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watching