How can you measure the height of a house or tree on a sunny day?

Measure your height and the length of your shadow, then measure the length of the shadow of a tree or house and solve the proportion ld = (lh * lshadow.d. / lshadow.h.).

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.