How many angles does a house have?

That really depends on what kind of house, I'm sure they're not all quadrilaterals :P

However, for the purposes of being sensible, the standard house is a rectangle, therefore it is a quadrilateral, so it has 4 angles of 90 degrees if it is regular which is has to be in order to stand up.

Number of ways = 4! = 4 x 3 x 2 x 1 = 24

24