Triangle with right angle
right triangle
sides equal
equilateral
angles equal
equiangular
two sides equal
Isosceles triangle
no sides equal
Scalene triangle
One full rotation equals
one revolution (360 degrees)
System that provides link between measure of an angle and length of an arc of a circle
Radian system
Counterclockwise
positive 360 degrees
180 degrees
1/2 revolution
Studies properties of triangle in a plane and two dimensional
Plane trigonometry
Concerned with relations among sides and angles of spherical triangles
Spherical trigonometry
Clockwise
Negative 360 degrees
No right angle
Oblique triangle