median
don steward
mathematics teaching 10 ~ 16
Tuesday 5 April 2011
acute angled triangle
explain why it needs 7 triangles to cut an acute angled triangle into
triangles with angles that are all acute
something like this:
for an obtuse angled triangle?
for a square?
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment