# 🧮 Plane Angle

## Second of Arc to Gradian

The plane angle conversion of 0.25 second of arc is 7.716049382716E-5 gradian.

Second of Arc
to
0.01 3.0864197530864E-6
0.05 1.5432098765432E-5
0.1 3.0864197530864E-5
0.25 7.716049382716E-5
1 0.00030864197530864
5 0.0015432098765432
10 0.0030864197530864
20 0.0061728395061728
50 0.015432098765432
100 0.030864197530864

### Plane Angle

In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane. Angles are also formed by the intersection of two planes in Euclidean and other spaces. These are called dihedral angles. Angles formed by the intersection of two curves in a plane are defined as the angle determined by the tangent rays at the point of intersection. Similar statements hold in space, for example, the spherical angle formed by two great circles on a sphere is the dihedral angle between the planes determined by the great circles.