Monday, April 14, 2014

Let U be the set of all triangles in a plane. If A is the set of all triangles with at least one angle different from 60°, what is A′?

Let U be the set of all triangles in a plane. If A is the set of all triangles with at least one angle different from 60°, what is A′?

Answer
A is the set of all triangles without angle different of 60°.

No comments:

Post a Comment