una pili ka muna kung ano gusto mo unahin kung saang POV
for example dyan sa problem, POV from Y-axis, ang makikita mo na lang is yung X and Z saka yung A (silip silip lang)
SOHCAHTOA lang
SINE=OPPOSITE/HYPOTENUSE
COSINE=ADJACENT/HYPOTENUSE
yung A is may 5km na hypotenuse, yung angle is 60...
Mostly ng mga laptops pwede naman, karamihan naman removable yung disk and yung iba may slot din for additional storage
pero kung yung ibang low-end na laptops kasi may nakabuilt-in kasi na disk na non-removable.