No, not every trapezoid is an isosceles trapezoid.
You would think so, but a trapezoid is defined as having exactly one pair of parallel sides. So an isosceles trapezoid having 2 pairs would be breaking the rules. However, there are some math experts who define trapezoid as having at least one pair of parallel sides. In this case it can happen. The most important thing is to know which definition is being used. That will directly answer the question.
The altitude of a trapezoid bisects the bases of the trapezoid.
All the names to classify a trapezoid are a trapezoid and a quadrilateral.
A trapezoid can also take the form of an isosceles trapezoid
Check out the official NHL rulebook for NHL rules. You can get there by using the link below.
There aren't any NHL rules during the Olympics. The refs use International Hockey rules
Yes
The trapezoid is the only place that the goalies are allowed to play the puck. This is a rule that came into the NHL during the lockout, what it does is it makes the game go faster because the goalie can no longer play the puck outside the trapezoid and freeze it or try to move the puck from there.
I would suggest you go www.NHL.com and click on rules. This will enable to view and/or download the NHL Rulebook to read at your own convenience.
The NHL rules are too many and too involved to list here. I would suggest you go www.NHL.com and check out the rulebook yourself. Also, you can simply Google NHL rulebook or NHL Official Rules. You should also remember that, while hockey is hockey, a number of rules/regulations used in the European/international game are different from the NHL pro game.
The NHL rules are too many and too involved to list here. I would suggest you go www.NHL.com and check out the rulebook yourself. Also, you can simply Google NHL rulebook or NHL Official Rules. You should also remember that, while hockey is hockey, a number of rules/regulations used in the European/international game are different from the NHL pro game.
Canadian hockey is the same as the NHL.
5/16"
yes but stricter rules should be made
not sure if any sport uses parallelograms but hockey (in the NHL that is) has a trapezoid shape behind the nets, which is part of the goalie's crease.
If you go to the NHL.com website and click on RULES, you will be able to view the official NHL Rule Book.