15° arc > 15° outer base line

The smaller angle, the clearer that arc length > outer limit length

PhotoEditor_20190908_224240438

PhotoEditor_20190908_224513071

That’s why constant Phew=3.17157 (times 2) applies for 1D (circumference), to accompany constant Pi=3.14159 for 2D (circular area)

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 )

Google photo

You are commenting using your Google 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 )

Connecting to %s