#Core Pure 1 Vectors

13 messages · Page 1 of 1 (latest)

primal basin
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mark scheme

image.png
violet shale
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its hard to see but this is why

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you’re finding the angle i labelled theta

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in order to find the angle between the line and the plane, you want to use that little right angled triangle that you can make with the normal, line, and plane

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i tried to label that right angle on the diagram

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so in order to do that, you need to do 180-theta to get the top angle of the triangle

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then 90- that angle to find the anfle between the line and plane

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which gives us theta-90 which is the answer

primal basin
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ahhh I see now, this is a similar question to one in the textbook, I've never had it in context before which is probably why I was confused

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thans for your help :)

violet shale
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np, sorry my drawing is kinda bad 😭

primal basin
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yeh 3d drawing is a pain in the ass 😭