Wiki User
∙ 14y agoAn acute angled scalene triangle.
Wiki User
∙ 14y agoAn obtuse triangle.
90 degrees
It is a right angle triangle
A triangle on a concave surface.
A triangle that has an angle greater than 90o is an obtuse triangle.
An obtuse triangle.
A triangle on a concave surface.
It is a right angle triangle
90 degrees
Obtuse triangle: a triangle with one angle greater than 90 degrees.
a 90 degree triangle
A triangle that has an angle greater than 90o is an obtuse triangle.
The third angle is 180-(60+70) = (180 - 130) = 50degrees.-- All of its angles aren't equal, so it's not an equilateral triangle.-- No two of its angles are equal, so it's not an isosceles triangle.-- No angle in it is 90 degrees, so it's not a right triangle.-- No angle in it is greater than 90 degrees, so it's not an obtuse triangle.--> It's an acute, scalene triangle.
The Right Angle.
If it has one right angle (90 degrees), it is a right triangle.If it has one obtuse angle (more than 90 degrees), it is an obtuse triangle.If it has more than one acute angle (less than 90 degrees), it is an acute triangle.
A triangle is the 2D name of a certain shape. A triangle has three sides and, in the case of a right angled triangle, has an angle of 90 degrees in one corner. There are many other names depending on the angles used.
how you name a triangle by its angles is like acute, obtuse, or right triangle. you do that by seeing if the angle has a 90 degree angle in it then its a right angle, if all the angles are 90 degrees or less than its an acute triangle. and if the triangle has one angle that is over 90 degrees than it is an obtuse triangle. to name a triangle by its sides is if its equilateral, equiangular, or regular. if its equilateral then all the sides are congruent. if its equiangular then all the angles are congruent. if its regular, then all the sides and angles are congruent to each other (for example and octogon). :)