So, you need to consider that many a time for this kind of simple cantilever beams, we directly used that area is = bh3/12 or wh3/12, whatever you call the width, .But, there what we need to understand that the, it is not the width or the breadth is not only the based on its geometric it is also which direction the force is working.
तो, आपको इस बात पर विचार करने की आवश्यकता है कि इस तरह के सरल कैंटिलीवर बीम के लिए कई बार, हमने सीधे उपयोग किया है कि उस क्षेत्र के जड़त्व आघूर्ण (moment of inertia) का मान = bh3/12 या wh3/12, जिसे आप चौड़ाई कहते हैं, ।