Yes they are (at least, in a regular hexagon).
If it is a regular hexagon then each of its 6 interior angles are 120 degrees
You are an irregular hexagon.
2, obtuse and reflex angles are larger than right angles A straight angle is larger.
More- each angle is over 90 degrees.
A Triangle which do not have a right angle.
If it is a regular hexagon then each of its 6 interior angles are 120 degrees
no
You are an irregular hexagon.
2, obtuse and reflex angles are larger than right angles A straight angle is larger.
More- each angle is over 90 degrees.
A square only contains right angles, so there are no larger angles than a right angle in a square. If you meant how many angles are there larger than a right angle, then there are two answers. Literally speaking, there is an infinite number of angles greater than 90o, but what you're probably looking for is types of angles. There are to types of angles greater than a right angle: Obtuse (90<x<180) and Reflex (180<x<360).
A Triangle which do not have a right angle.
An acute triangle.
a circle
Yes, a regular hexagon has ALL sides the same length and ALL angles equal. If you flatten it somewhat (like the profile of a lens) then the sides may still have the same length but some angles will be larger than others if opposite angles are the same than there will be symmetry. (there are many other options to retain symmetry in a hexagon this is but one)
No angles are larger than 90 degrees in a square based pyramid.
As far as I know, a hexagon has 6 angles whether it is regular or not. Some may be obtuse angles, but they still count. So a hexagon where some of the sides go 'in' rather than 'out' is still a hexagon.