Hello kevintrung Originally Posted by

**kevintrung** what shape that have all equal interior angle and 2 parallel sides but doesn't look like a rectangle

What shape that is an equilateral polygon and has all equal interior angles and have 2 parallel sides but doesn't look like a square

Heres the actual question, i just need help with part A pls thanks

http://garsia.math.yorku.ca/~zabrocki/math1200fw0910/homework/hw2.pdf Here's an important hint:

The discussion doesn't anywhere specify that $\displaystyle x$ must be chosen from the set of quadrilaterals. So in the propositions $\displaystyle EP(x), EA(x)$ and $\displaystyle HP(x), x$ may be a polygon with any number of sides.

Grandad