All equilateral triangles are isosceles, so we have , i use here to mean a proper subset.
Some (but not all) obtuse triangles are isosceles, so we have that but there is at least one element, call it, such that but
No equilateral triangle is obtuse, so we have
Now can you draw a Venn Diagram? Recall, we represent the universal set by a large rectangle, in which our sets are contained. our other sets, we represent as circles that may or may not overlap.
Thanks Captain, I was almost near to the solution.
As my findinds are :
B = An equilateral triangle has 3 equal sides.
A = An isosceles triangle has 2 equal sides.
C All equilateral triangles are isosceles.
So, Set B is entirely in set A. Set B and C dont overlap. An isosles trinagle can be obtuse. So set A and C overlap each other.
hello, i'm new at mathhelpform ....i want to send my problems as well as want to communicate with other students but i don't know how can i do this sooooo please help me in this respect.......if anyone can help me plz reply me as soon as possible....thanks a lot