Here is a short URL for the trigonometry activity.

Transum.org/go/?to=Trig

# Three Dimensional Trigonometry Presentation (17 slides)

## Try your skills at our trigonometry online exercise.

Go directly to a particular slide:

This presentation as a PowerPoint file is available to teachers who have subscribed to Transum.

Here is the URL of this presentation linking directly to the slide you are currently viewing, slide number 1. Copy and paste this link into your scheme of work, revision notes or blog.

There are many more mathematical visual aids to project onto a whiteboard or screen in our Shine+Write area and, though it is not a big part of the Transum website, there are more presentations on the PowerPoint page.

Transum,

Tuesday, March 11, 2014

"Here is the full text of our trigonometrical poem:

In days of old when knights were bold and dragons still breathed fire

There lived a knight, a clever knight, Sir Pythag-Oar Esquire

He had a lance, a sturdy lance, it measured thirteen feet

He had it with him just in case a dragon he should meet.

But when he came to cross a bridge the guards they did implore:

The longest thing allowed across is nine feet and no more.

Sir Pythag puzzled long and hard; this problem was a quest

Until he found a carpenter to make a wooden chest

The chest was made in record time; not long did Pythag wait

The chest could cross the bridge because 'Twas eight by eight by eight

Now if you do the maths you'll see the diagonal is a line

Of length (worked out with 3D trig) roughly thirteen point nine.

That's big enough to hold the lance with room to spare of course.

But such a chest and the knight are too much for his horse."