Question

[HOT The figure shows the dimensions of a wall having a window and a door of a room. Write algebraic expression for the area of the wall to be painted. 5x + 2 A2x — х Door Window 5x 3x AX-​

Answer 1

Answer:

Answer is given in attachment

Answer 2

Answer:

The angle of incidence is always equal to angle of reflection and the normal at the point of incident comes at 90°and also reflects at 90°

The reflected ray is always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.