Reading the formulas

Simon has made a table of how to calculate the areas of various shapes. The ellipse one made him especially happy:

πr x h/2

Which one is r, I asked, and which one is h? Is h the longer line? – It doesn’t matter, Mom, because you divide them both by two in the end, Simon said. That’s funny how he sees those things earlier than I.

And in a circle, the radius and the hight divided by two is the same! – he added in English.

***

Earlier the same day:

Neva shouts: Mom, the film was first 2D and then all of a sudden 3D!

Simon: No, it was first πr² and then it became 4πr²!

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s