GCSE Maths - Volumes of Cylinders and Prisms

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

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[@fionanorris3248]

so easy to understand Brilliant

[@Robloxbedward]

Such a great explanation covering all the main and important points of the topic about volumes of cylinders &prisms . Bravo!!!!! it couldn't have been better !! And now with great enthusiasm I would highly appreciate if you upload some of more informative videos of maths

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[@vincentxie3090]

For question 2 I was wondering do we always have to work out a half of the cross sectional area of the triangular prism whenever you calculate the total of three volumes of a figure

[@ColdAJ]

When you have a figure made up of three identical triangular prisms, you can find the total volume by calculating the volume of just one triangular prism and then multiplying it by three. To find the volume of one triangular prism, you use the formula: For a triangular prism, the base area is half the product of the base length and the height of the triangle. So, first, calculate the volume of one prism. Then, multiply that volume by three to get the total volume of all three prisms together. If the prisms are not identical, you'll need to find the volume of each one separately and then add them together to get the total volume.

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Hi this is helpful☺

[@gfdv423]

Hi sir,Can you explain me how to calculate surface area please?

[@NamhlaMaphungu-q3v]

Thank you ❤

[@solarflame3989]

thanks

[@katiegoulding1]

Why do you have to times by 1/2 on the prisms

[@sail4549]

that's how we find the area of a triangle

[@ryze5436]

And also the triangle is half of a rectangle

[@vincentxie3090]

is it because multiplying a triangular prism is always 1/2

[@Mizuki_2008]

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ilysm

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3the power of 2 is 9 dwag

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I have a test on Friday inshaalhha 100% (I got.....)