Grads or Gradians!
Right angle E. The vertex of any angle can also be used to name the angle.
A 90o angle is a right angle, and a triangle with a right angle is called a right triangle.
90o angle
A right angle
So basically , you have an right angle and another angle . You draw an right angle over the angle your looking at and if its smaller than the right angle then its an acute angle . If its bigger than the right angle then its a obtuse angle . GoodLuck!(;
Square.
Right angled isosceles
From its right angle. right angle --> rect angle.
Right angle E. The vertex of any angle can also be used to name the angle.
tri as in 3 angles as in the ends . He's right but i wil explain more. Equilateral triangles get there name from all sides being equal hence the name equilateral. Right triangles get there name from having a right angle, or ninety degree angle. I don't know about iscoceles.
a right triangle
There is no name for such a figure. Quadrilaterals such as a trapezium or kite or even one with no equal sides can have a right angle.
The other name for a right angle is a 90-degree angle.
A triangle with no right angle and sides of different lengths is a scalene triangle.
The name of the angle you are looking for is an obtuse angle. For review here are all the names and classifications:Any angle less than 90 degrees is an acute angle.Any angle equal to 90 degrees is a right angle.Any angle greater than 90 degrees but less than 180 degrees is an obtuse angle.Any angle equal to 180 degrees is a straight angle.Any angle greater than 180 degrees but less than 360 degrees is called a reflex angle.
If the angle is larger than a right angle it is obtuse
A 90o angle is a right angle, and a triangle with a right angle is called a right triangle.