Dos edificios a y b estan ubicados uno en frente del otro. el edificio a tiene 48m de altura y el angulo que se forma desde su parte mas alta hasta la base del edificio b es de 65*. calcule cuantos metros de tuberia se necesitaria para conectar ambos edificios.

here it is translated in english maybe this should help...

Explanation:

Two buildings A and B are located in front of each other. Building A is 48m high and the angle formed from its highest part to the base of building B is 65 *. Calculate how many meters of pipe needed to connect both buildings.