I've been working on a math problem recently whose small subpart part is this. I don't want to post the whole problem and be spoon fed it, but I've been struggling with this sub part of it and since my math skills are still trivial the solution may require maths which I have to learn so,
Can the product $\mathtt(LR)$ where L is the hypotenuse of a right angled triangle and R is it's base be expressed using trigonometric relations of only $\theta$? Where $\theta$ is the angle between the hypotenuse and height H of the right angled triangle?
If yes derive the expression? Otherwise prove it not possible.