whispers is a form of:

Mensuration



noun
1.
(measuring, mathematical rules for finding lending lengths, areas, and volumes) ការវាស់, ការវាស់ក្រឡា
ENGLISH MEANING
noun
1.
The act, process, or art, of measuring.
2.
That branch of applied geometry which gives rules for finding the length of lines, the areas of surfaces, or the volumes of solids, from certain simple data of lines and angles.