ABC angle is an angle,not a triangle!
It could be a right triangle if it has a right angle (90 degrees). If it does not have a right angle, then it is an acute triangle.
A right angle triangle
A right triangle normally refers to a triangle with one right angle. a left triangle, on the other hand, is not a geometrically or mathematically recognised term. The difference is that a right triangle is a unique and well-known figure in Euclidean geometry, and has a concise and accepted definition, whereas a left triangle isn't and hasn't.
the obtuse angle is the largest angle in a triangle. It spreads from 91 to 179 on a protractor
Because the phrase 'right angle' indicates 90 degrees whereas there is no such angle as a 'left angle'
Looks better. No reason why you can't draw your triangle with the right angle bottom left or bottom right.
Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!
A right angle triangle
A right angle triangle.
ABC angle is an angle,not a triangle!
Because the Bottom left corner makes a 90 degree angle like this |_ and a 90 degree angle is called a Right angle thus the name Right angled Triangle
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
A triangle with 1 right angle is a right angle triangle.
An interior angle is any angle on the interior of the triangle.
It could be a right triangle if it has a right angle (90 degrees). If it does not have a right angle, then it is an acute triangle.
1. A triangle is a right triangle if and only if it has a right angle. 2. A triangle has a right angle if and only if it is a right triangle.