Find the angles which are equal to `angleP`.

Find the direction cosines of a line which makes equal angles with the coordinate axes.

Find the angle theta whose cosine is equal to its tangent.

The angle of incidence is equal to the angle of _________ .

……………. is a cevian that divides the angle, into two equal halves.

Light falls from glass ( mu = 1.5) to air. Find the angle of incidence for which the angle of deviation is 90^@ .

Find the angle A in triangle ABC, if angle B=60^∘ and angle c=70^∘

Measure of half of the angle is equal to its complement . Find the measure of the angle.