Anyone good with maths (trigonometry) here?

[DontSayBanana]

that's what my colleague just told me
But I want the formula for Excel, so my bidding software is future proof.

It's not just one formula- it depends which pieces of the triangle you have. For right triangles, you can reconstruct all the angles and sides from either one side and an angle or two sides. For non-right triangles, you need at least one side and all three angles (technically, two, but if you have two angles, you've got all three since they add up to 180), so you can determine where to split it into two right triangles.

[The Brain]

High school math is cool. One of my favorite questions that I remember from a test was about a cone inscribed in a sphere. The height of the cone is increased. At which height does the height and radius of the cone increase at the same rate?

[viper37]

that's what my colleague just told me
But I want the formula for Excel, so my bidding software is future proof.

It's not just one formula- it depends which pieces of the triangle you have. For right triangles, you can reconstruct all the angles and sides from either one side and an angle or two sides.

Yes, I was trying to fit a right angle triangle somewhere, to first deduce the missing side, then try my luck with the other part.

For non-right triangles, you need at least one side and all three angles (technically, two, but if you have two angles, you've got all three since they add up to 180), so you can determine where to split it into two right triangles.

yeah, that's what I was missing.  Anyway, I got my measurements thanks to funk and my colleague.  Close enough for now.  Before I hit the site I'll ask for a more detailed view.

[viper37]

High school math is cool. One of my favorite questions that I remember from a test was about a cone inscribed in a sphere. The height of the cone is increased. At which height does the height and radius of the cone increase at the same rate?

that's not something we do in high school.  I remember such questions, but they were in the calculus class in college (1st year after high school, so "grade 12" if you don't count kindergarden).

All we deed in high school, in advanced math, was to draw figures.  Find the equation, draw the curve, get noted on how well you drew the curve or the shape.

[The Brain]

High school math is cool. One of my favorite questions that I remember from a test was about a cone inscribed in a sphere. The height of the cone is increased. At which height does the height and radius of the cone increase at the same rate?

that's not something we do in high school.  I remember such questions, but they were in the calculus class in college (1st year after high school, so "grade 12" if you don't count kindergarden).

All we deed in high school, in advanced math, was to draw figures.  Find the equation, draw the curve, get noted on how well you drew the curve or the shape.

Ouch. With finger paint?

[viper37]

High school math is cool. One of my favorite questions that I remember from a test was about a cone inscribed in a sphere. The height of the cone is increased. At which height does the height and radius of the cone increase at the same rate?

that's not something we do in high school.  I remember such questions, but they were in the calculus class in college (1st year after high school, so "grade 12" if you don't count kindergarden).

All we deed in high school, in advanced math, was to draw figures.  Find the equation, draw the curve, get noted on how well you drew the curve or the shape.

Ouch. With finger paint?

close

[11B4V]

I'm looking to find X and Y.

Angles on the 20m side are 90deg.  The angle between 3,66m and the base is 45deg.

The distance between Y and the end of the shape is approx, 1,520m so let's use this value to determine the real length of this top side: 12,23m.

How do I find X and Y's height?

13

[Pedrito]

I'm looking to find X and Y.

Angles on the 20m side are 90deg.  The angle between 3,66m and the base is 45deg.

The distance between Y and the end of the shape is approx, 1,520m so let's use this value to determine the real length of this top side: 12,23m.

How do I find X and Y's height?

13

42

L.

[grumbler]

42

L.

Right answer, wrong question.