Saturday, April 27, 2024

X Marks the Side

In my continuing quest to have a Saturday with just an image, I present:

This is what I've been doing with the math classes.

For the record, that X is the hypotenuse of this right triangle, and the trigonometric function needed to solve it is cosine. (I've been working these problems step-by-step with the kiddos. Some of them have been struggling with this, although that's to be expected as the concept is new to them.)

So: cos 43° = 36/x

Then: x = 36/cos 43°

This they can punch into their calculators to solve. (It's 49.2.)

Dangnabit! I didn't get away with no story for today, did I? Ah well...

Today's A to Z Challenge post brought to you by the letter

1. X needs to stop asking "what am I" of everyone. Therapy, Mr. X, you need therapy.

2. That's a good solution to the problem of using X in an A to Z post.

1. I think the last time X fell on a Saturday, I had a picture from a math class, too. Although, that was a wanted poster...

3. Very nice way to handle X!

1. X has been my friend these last couple months while in the math class.

4. How fortuitous that you happen to be teaching math right now

1. Yes, the timing was perfect.

5. Jamie (jannghi.blogspot.com):
It's amazing the ways people have found to work around X during this blog event.

1. Saturdays are easy for me. But in prior years I made use of the fact that names like Ximena and Xavier exist.

6. I was trying to recall my decades-old trignometry classes. Those days we didn't have advanced calculators. So, we had to go through manys steps to get to the answer.

7. I was very fond of x in my math classes.

1. I like X too. It's a great variable.

8. I remember books of tables for trigonometry and as well, we had slide rules - which my father, as an engineer thought preferable to calculators - too easy to make mistakes he thought and said you should always do the calculation yourself to check that its in the ballpark. I find that many young people today cannot manage mental arithmetic...Meant to say before - love the knitted numbers - I am more of a Tunisian crochet man (though I can knit too) Look out for my Y post tomorrow which i couldn't find a commodity for and so am doing Wool instead...
https://how-would-you-know.com/2024/04/x-for-exegesis-and-a-wildcard-poem.html

1. Wool's not a commodity? It should be.

2. No - wool is a commodity which means I did W twice with there being no Y...

3. Ah. That makes sense.

9. Today's post brought me back to the time I was learning calculus!

1. X has many uses in math.

10. Seeing that math problem just gave me the heebie jeebies

11. Well done! Usually, X marks the spot ;))