question_answer

The shadow of a person X, when the angle of elevation of the sun is a, is equal in length to the shadow of person Y, when angle of elevation of the sun is\[\left( \frac{\alpha }{2} \right)\]. Which one of the following is correct?

A) X is shorter than Y.

B) X is twice as tall as Y.

C) X is taller than Y but is not twice as tall as Y.

D) Both X and Y are of equal of height.