#geometry

17 messages · Page 1 of 1 (latest)

azure pasture
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The angle between two intersecting planes passing through one of the cylinder's radii is 60°. The areas of these intersecting planes are 360 and 720. If the height of the cylinder is 30, find the radius of its base:

weary hareBOT
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azure pasture
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From what I understand the drawing should look like this

wild iris
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Now use some trigonometry (and maybe some Pythagorean Theorem) and possibly assume that the bottom-most intersection plane lies on the base, so you can easily calculate the radius.

late wind
azure pasture
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Yeah but... There is no answer like that

late wind
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yeah i think but maybe not

azure pasture
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So what else can I do to solve this?

late wind
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maybe use some vectors

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try to find facts about the planes

azure pasture
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So, I'm still stuck. Can somebody help?

red umbraBOT
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@azure pasture

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red umbraBOT
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@late wind @wild iris The user still needs help with this help request.