I am in high school and I have a question that I haven't been able to solve for a very long time. Please help?
A sand timer consists of two cones joined at the apex. Each cone has height h, radius r and an angle at the apex of 60°.
Express the radius of the top cone in terms of its height. Give your answer in exact form.
I am stuck and don't know how to complete this question. Could you please help?
Thank you! ^^