Question

Define plane angle and solid angle with their units

Answer 1

Answer:

Solid Angle. ... The dimensionless unit of plane angle is the radian, with 2π radians in a full circle. A solid angle, ω, made up of all the lines from a closed curve meeting at a vertex, is defined by the surface area of a sphere subtended by the lines and by the radius of that sphere, as shown below.

Answer 2

Explanation:

plane angle

1)2 dimension

2) analogical analogical to a square, circle circle and triangle

solid angle

1) 3 dimension

2) analogical analogical to cube,cone,sphere