A triangle that has two sides of the same length and the third side of different length.
A triangle that has three sides of different lengths.
What is the sum of angles property of a triangle called?
What is the name given to a triangle whose three angles are less than 90°?
Any exterior angle of a triangle is equal to the sum of its interior opposite angles
A triangle that has three sides of the same length.
Acute-angled triangle.
Equilateral triangle.
The sum of all internal angles of a triangle is always equal to 180°
This is called the exterior angle property of a triangle.
Isosceles triangle.
A scalene triangle.