Three’s a crowd.

Frustrum problems can be FRUStrating.  Ignoring the 3rd dimension can make it easier.  These pictured circles and triangles actually represent spheres and (truncated) cones, and now I can use the Pythagorean theorem and other nice 2-D properties to solve.  (A frustrum is a truncated cone or pyramid.)

IMG_20170920_160501.jpg

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