Solving 3D Problems using Pythagoras and Trigonometry

Interactive Video

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Mathematics

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9th - 10th Grade

•

Practice Problem

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Hard

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The video tutorial explains how to solve 3D problems by breaking them into 2D components, focusing on Pythagoras and trigonometry. It demonstrates solving for length CD in a cuboid and calculating the height and angle in a square-based pyramid. The tutorial emphasizes the importance of understanding Pythagoras's theorem, trigonometry, and the sine and cosine rules. It concludes with strategies for effectively tackling 3D problems.

3 questions

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OPEN ENDED QUESTION

3 mins • 1 pt

How do you calculate the height of a square-based pyramid using Pythagoras's theorem?

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OPEN ENDED QUESTION

3 mins • 1 pt

What trigonometric function is used to find the angle that edge EB makes with the base?

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OPEN ENDED QUESTION

3 mins • 1 pt

Summarize the key steps to solve 3D problems as outlined in the text.

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